[by Helix_Bami]

[Summary:An alternate reality where the old satan faction leader: Katerea Leviathan gets her hands on the Red dragon emperor first before Rias could.]

==Chapter 1: Deal with the Devil==

Sitting inside of her office within the castle that acted as the base for the old Satan faction. Katerea Leviathan, princess of the royal bloodline of the Leviathan family was sitting by her large desk reading through some reports some of her scouts have given her. Katerea along with her fellow devil king descendants recently alligned themselves with the infinite dragon god Ophis to gain from her to increase to their own.

But while it was something to start with. Katerea knew it wasn't enough. She wanted more power to add to her faction. She was a proud devil, a devil princess that represented the sin of envy at that. But recently her envy had gotten stronger thanks to her rival Serafall Sitri who had stolen the name Leviathan for herself and acted as the current devil king Leviathan.

Katerea was seething with envy as she couldn't fathom the idea of Serafall taking the place that she rightfully inherited. She was able to put aside her pride and made a deal with Ophis for more power. But even with the snake she was granted. Katerea desired more power.

She first went to the Lucifer descendant who happened to be the white dragon emperor, Vali Lucifer. But he wasn't someone she could buy over with little promises as Vali desired something far bigger that Katera could even hope to achieve.

So after failing to convince Vali. She sent out a specific hunting party to look for the other heavenly dragon. The red dragon emperor. She hoped that the Red dragon was at least someone she could buy over with either money, knowledge or perhaps women if he or she desired.

Katerea was still a bit unsure what the current red dragon emperor wants to enlist their service to her. But at least there is a chance that might happen.

And that chance happened sooner than she imagined as a knock on the door sounded which broke Katerea from her concentration as she snapped her finger which made the door magically open for the scout who bowed before entering the room. The scout took a couple of steps before going on one knee while presenting what looked to be a file.

"My lady. We have founded the Red dragon emperor." The scout announced which surprised Katerea. The tanned skinned devil mentioned for the scout to stand up and hand over the file which he obediently did as Katerea opened the file case and saw a picture of a boy in his late teens with brown hair and matching coloured eyes. He looked to be a bit younger than Vali in terms of age.

"This is the Red dragon emperor?" Katerea asked as the scout nodded before talking.

"His name is Issei Hyoudou, 17 years old. Lives in Kuoh Japan in the town that Rias Gremory and Sona Sitri occupies as the current rulers. He coincidentally attends the same school as them but has shown no sign of haven awaken his sacred gear or any connection to the supernatural world. I've looked into a personal life. He lives with his parents who are both average working humans with nothing that makes them stand out. He has two friends in the school and has gotten the reputation as part of the uhm.... perverted trio. His dream is to become the Harem king. And lastly, Rias Gremory has already shown interest in the human which most likely be her trying to enslave him into her peerage." The scout explained without missing a single point as Katerea couldn't help but smile at the thought of the current red dragon emperor being a pervert.

But that did gave her an opening she could use to might lead to him joining her. But the last point that the scout said did started to ring a bell in her head as Katerea gained a look of hurry on her face.

"We can't let this chance slip. I'll personally head over to Kuoh and convince the young red dragon emperor to join our faction. Inform my husband that I will return later than usual. Hopefully with good news." Katerea announced as she teleported away with an organge magic circle.

The scout nodded as he walked out of the office to inform Creuserey.

(Kuoh/ With Issei)

Issei Hyoudou was walking home from school with a lecherous grin look on his face. He and his friends succesfully were able to peak on the kendo team changing which for them was a giant win as Issei walked back home his eyes saw something he thought he imagined.

Rubbing his eyes Issei saw a beautiful older woman standing by the gate of his house waiting patiently. She wore a dark purple business suit with her hair neatly in a bun along with her glasses giving her a more stoic appearance. Her tanned skin with her dark blue turned to Issei as a small smile appeared on her face as she walked forwards.

"Issei Hyoudou?" Katerea asked making the brown haired boy nod while trying to hold back a nosebleed. "My name is Katerea. I have been meaning to talk to you. Are you available right now?" Katerea asked again making Issei nod hastily as he painted at his house.

"My parents are both working at the moment... You want to come inside?" He asked making Katerea nod who followed Issei as he nearly struggled opening the door before letting Katerea inside. Katerea saw that Issei took off his shoes making Katerea follow as she wasn't much knowledgeable of Japanese customs, so following his lead. She followed Issei to the living room where he pointed at the large couch. Well for humans it may have been large, for her it was nothing note worthy. But she didn't say anything and sat down.

Issei walked over to the kitchen and grabbed two bottles of water out of the fridge and walked back to Katerea before handing her one.

"Here, sorry if it isn't much. But I didn't expect guest coming over." Issei apologised making Katerea give a small smile in return.

"It is no big deal. But it's good you gave me this water bottle." Katerea replied as Issei sat down as Katerea let out a small smirk. "Issei, do you belief in the supernatural?" She asked making Issei look confused.

"As in the whole angels, demons and Gods? Not really." Issei answered making Katerea nod as she pulled off the cap of the bottle but didn't take a sip of it.

"Would you belief me that they do exist? Along with all the other mythologies in the world like Greek, Norse and even your Japanese gods exist." Katerea asked as Issei raised an eyebrow in confusion as if the woman was talking nonsense.

"You really think I would belief that." Issei asked making Katerea smile as she held the bottle with one hand while raising her other.

"Then would you belief this?" She asked as suddenly the water in the bottle flew out of it and created a ball of water that floated in the air. Issei blinked as slowly realistion hit him as he didn't know what to say. Katerea smiled at his reaction before making the orb of water change shape creating a fish then into a human figure of herself.

"No way..." Issei said in disbelief as Katerea turned the water orb into ice and held it with her hand.

"Do you now belief me Issei?" She asked before destroying the ice orb into nothing but dust with her hand.

"Fine, I belief you. But It is just insane to think that all that stuff is real..." Issei said with surprise making Katerea nod as she smiled towards him.

"Then let me explain you who I am. My full name is Katerea Leviathan. I am a descendant of the devil king Leviathan and the rightful heiress..." Katerea proceeded to explain about the 3 great factions to Issei along with the shocking truth of God's death. She also revealed to him about the sacred gears along with their strongest variation, the Longinus. And lastly she told him about what happened after the Great war such as the Civil war within the devil faction and that both current sisters of the current devil kings are attending the same school as him.

Issei who looked bewildered looked at his right hand. "So you're telling me that bonded with my soul is a weapon that is strong enough to kill a God along with carrying the soul of one of the strongest dragons in the world?" Issei asked as he was able to absorb most things Katerea had told him. Katerea nodded as she moved herself to sit next to Issei and grabbed his right hand.

"Yes. While the sacred gear and the Welsh dragon are still sleeping. It is a fact that you carry the sacred gear. Now, the reason why I am here is in hopes to recruit you to my faction. I've explained to you about the civil war with the rebellion faction that overtook Hell. We need more power and the Red dragon emperor would increase our fire power exponentially." Katerea explained as Issei looked at his hand in deep thought.

"And what is it for me? If I don't agree are you going to force me?" Issei asked as he got a bit on edge which Katerea noticed and immediately tried to defuse.

"No, not at all. Well I am not planning on resorting to that method. My intentions is to have you willingly join us as you are still very inexperierced and need formal training. The other leaders are to arrogant and impatient for that. So I decided to be straight forwards and tell you personally. Of course I don't want to lose such a valuable player in the supernatural world. So I am willing to give you anything in return for aiding our faction." Katerea reasoned as Issei nodded before narrowing his eyes a bit.

"I don't like the idea of becoming a tool for some nation..." Issei muttered as Katerea shook her head.

"Then be only loyal to me. You don't have to serve my faction if you don't want to. But then lets created a partnership with each other, like a mercenary and I am your client. For starters I won't force you to do anything yet apart from helping to awaken your powers and train you properly while you continue your life here on school. That would benefit us both in the future. Also you should be aware that I won't be the only one to ask you to join their faction. Rias Gremory has already shown interest in you and knowing her current situation. She might pull you into her service without your consent or opinion. Devils are many things. But every devil is one thing for sure and that is selfish. I am selfish too but I want to see the full potential that you have." Katerea explained as Issei looked at her with a thoughtful expression.

"Then what are you gonna do if I accept your offer? And what will you offer me in return?" He asked as Katerea nodded before creating a magic circle on the ground infront of them. The circle split into two smaller circles as Katerea pointed at it.

"We need to peform a magical contract that will bind our souls together with a magical link so neither of us will break our promise to the other." Katerea explained before looking back at Issei before giving him a more seductive tone.

"As I said before, I will aid you in awakening your sacred gear along with training your body and in the art of magic which I am a master at. And of course I am willing to give you anything within my power. Such as knowledge, weapons, money, riches and lastly something I know you want... All the devil women that are serving me. You can have them as your plaything and create your Harem if you want." Katerea offered with a devious smile as she knew that Issei couldn't let down such an offer.

Issei's head was filled with perverted thoughts as his dream of having a harem was being offered right infront of him. And judging from what she wanted from him, it didn't sounded that bad. But Issei's mind went to somewhere else as he looked back at Katerea.

"I will accept your offer one more condition..." Issei said which made Katerea raise an eyebrow but she replied none the less.

"Then what is it?" She asked as Issei gave a more an evil peverted look.

"I want you to be my girlfriend." Issei answered which surprised the royal bloodline devil.

'Me? his girlfriend? Does he want to make me part of his harem? I guess he finds me attractive and with what I offered, he assumes that I'm also on the table of female devils for him to use as his plaything. But i'm married to Creuserey... Well if a happy marriage is something I have to sacrifice in order to obtain the Red dragon emperor, So be it.' Katerea thought determinedly as she looked at Issei who was looking at her with anticipation and Lust.

"If that is what you want. I will become your girlfriend." Katerea agreed as Issei nodded with a giant grin on his face.

"Then I accept your offer." Issei replied as Katerea nodded as both stood up from the couch and stepped on the magic circles as both started the contract ritual.

"I'll begin follow after me. I Katerea Leviathan swear to aid Issei Hyoudou in his training as the Red dragon emperor and will help him with any of his desires. I'll offer my body for his use along with any request he may have in the future." Katerea offered as under her the magic circle lid up as it accepted Katerea's offer.

Katerea turned to Issei and gave her a nod. "I Issei Hyoudou swear to aid Katerea with her goals in return for her offer." Issei offered in return as the magic circle lid up as well. Both magic circles shined brightly as both Issei and Katerea felt a white aura around their bodies as both human and devil had succesfully created the pact as the light died down and the magic circle vanished.

Katerea nodded as she looked back at Issei with a smile. "The pact has been made. I assume you wish to partake in my body?" Katerea asked knowingly as she already accepted the fact that her body is now his propertly. But for her, it was a small price to pay for something much greater in the future.

"Yes." Issei nodded eagerly as he walked up to her. Katerea followed as both stepped closer to each other as Katerea was still much taller than him so she leaned forwards a bit before both their mouths connected with each other.

Katerea wasn't surprised at how eagerly Issei was making out with her. But what confused her was the feeling she was getting from him. It was like her body started to feel hotter and more vulnerable to his touch as Issei hand reached up and grabbed her two ass cheeks with both hands which made the tanned skinned devil jump at his forcefulness as they started making out in the living room.

Katerea had to admit. For a virgin, Issei was one hell of a kisser as his tongue was easily taking control of hers and ravaging her mouth with ease. Katerea couldn't help and raised her arms around Issei's neck to pull his deeper into the kiss which he gladly accepted as Issei played with her butt like a child that got a new toy as a present.

Drool started leaking out of their mouths as Katerea grinded her body against his as she could feel Issei's rock hard erection through the several layers of fabric that was between them. Eventually both had to break the kiss to catch some air as the Leviathan descendant looked at Issei while trying to catch some air. The Red dragon emperor grinned as he still held on to her butt with no intentions to let go.

"My parents will come home soon. Can you bring us somewhere more private?" Issei asked making Katerea nod weakly as a magic circle appeared underneath them and teleported them to her master bedroom in her personal castle. Issei didn't have time to look around as Katerea connected their lips again as they both continued to make out in the large bedroom. The devil princess slowly pushed Issei on her bed making the teenage boy groan at the loss of her lips. Katerea smiled seductively as she snapped her fingers which made her clothes vanish apart from the dark purple lingerie set along with matching stockings that she wore under her business suit.

Issei nearly was about to shoot out some blood out of his nose but he held it in as he wanted to stay awake as long as possible. Katerea looked at him with a hungry look as she gestured for Issei to lay in the middle of the bed which he glady did. Katerea then snapped her fingers again which made Issei's clothes vanish apart from his boxers which showed that Issei wasn't the most muscular male she has ever slept with but his body did have promise.

Well the most promising thing was the giant bulge in his boxers that were threatening to tear the shorts off from the sheer size of the young man.

"My my... are you already so excited?" She asked as she crawled on the bed like a snake slithering towards its prey. Katerea made sure to ache her back so her ass was visible for him even from the angle he was laying at. Her ass shook from side to side as she came closer with a hungry look on her face.

Issei did nothing but watch as Katarea crawled in between his legs and came closer to his crotch that was twitching from inside his boxers. The devil princess smiled as she leaned forwards and pressed her nose against his crotch trying to take in the scent which was strong enough for her to smell even with his boxers on.

"Such a strong aroma... Are you ready Issei~?" Katerea asked with an eager tone in her voice as she stroked her nose across his erection trying to obtain more of his scent that was slowly filling her mind and making her hungry for more.

"Yes..." Issei agreed as Katarea opened her mouth and licked his raging cock from the outside of his boxers before coming to the waistband of his boxers and slowly pulling it down with her teeth. She pulled it down enough that Issei's dragonic cock erupted from its restraints and slapped her across the face which startled the devil who nearly lost her glasses as she pulled them off before tossing them to the side.

She eventually was able to fully take off his boxers from his knees and tossed them to the side leaving him fully naked in her bed which she shared with her husband many times in her long life. Katera however had long forgotten of her husband as she had bigger matters on her hands such as the raging cock of the red dragon emperor that needed to be tamed or else she will be the one who is dominated.

Not that she was against the idea of being taken by a Dragon.

Looming over Issei's crotch where it was twitching with need. Katerea smiled as she leaned down and gave it a sloppy wet kiss before opening her mouth, letting a good chunck of her saliva fall down on the tip before she took hold of his rod with her hand which wasn't able to wrap around the entire girth but she still used it to coat his veiny dick with her saliva with a sloppy handjob.

Issei clenched his teeth as Katerea was stroking him off with her daunty hand as her other hand reached for his jewels and took hold of the giant sack and rubbed it affectionately making Issei's eyes roll up as Katerea was doing wonder with his dick and balls.

"Shit... That's good..." Issei groaned out as Katerea leaned forwards and gave it an other kiss before opening her mouth to take in the tip of his dick in her mouth. She was surprised at how much she had to spread open her lips for the entire tip to fit in. She couldn't help but feel excited at having such a giant rod inside of her other holes.

"Fucckkk...." Issei groaned out as Katerea's mouth slowly sank deeper taking in inch after inch as her tongue danced around his rod soaking Issei's dick with saliva as the older woman had taken in half of his entire lenght in her mouth.

"Gwua~!" Katerea let out a gagging sound but didn't remove her face as she took a moment to compose herself. However Issei had lost all his patience and wanted her to go deeper. He grabbed her by her neatly kept bun and pulled her face all the way to the base of his dick with one single thrust which shocked Katerea as she tried to resist but her mouth and throat were filled to the brim with nothing but Issei's dick that made her start the choke but Issei didn't want to let go as her nose was pushed in his pubic hair making her inhale the musk of his dick which fried her senses from the dominating scent as Katerea's legs quivered as wet spot appeared on her panties as she came herself from Issei's rough treatment.

"Fuck~! Your throat feels so Good!" Issei yelled as he pulled Katerea's head back a bit before pushing it back down again making her deepthroat him again before doing it again a couple of times making his balls slap against her chin while her nose dove in and out of his bush.

'HE'S RAPING MY THROAT~!' Katerea could only desperately think as her eyes rolled back in her head as she came again from just sucking his off. Eventually Issei got tired of her mouth and pulled her face away from his dick allowing her breath as she started desperately tried fishing for air as she was on the brink of passing out.

"I'm not done devil. Finish me off with your boobs!" Issei ordered as Katerea felt the magic of the contract acting up which made her lift her upper body a bit so her giant pair of melons were now on the same level before taking off her bra and enveloping his dick with her giant pair of breasts making him let out a peverse giggle as her soft tits were massaging his rod.

Taking her knockers with her hands she started jerking him off with her tanned milkers as the remainder of Issei's dick she sucked off with her mouth. Issei placed his hands behind his head as he let Katerea do her thing as she continued giving him a blow and boobjob at the same time.

"Yeah... Making that deal was worth it..." Issei said to himself as he looked at the ceiling as his balls scrunched up as he was about to bust his load. "I'm cumming Katerea!" Issei announced as Katerea nodded and doubled her efforts. The combined attack of her mouth and breasts were too much for Issei as he let out a final groan as his dick exploded into Katerea's mouth who was shocked to feel Issei's cum shooting out of his dick like a geyser making her let her mouth go from his dick which shot up a couple of ropes of cum onto her face and breasts painting it pure white.

"Ha...Ha...Ha... That was fucking amazing..." Issei said in between pants as Katerea licked off the giant bits of cum from around her mouth and face which was a like an exquisite taste she never had drank before. It easily was more delicious then her husband's semen not to mention how addictive the taste and scent of his dick was for her.

'No devil women is safe from this dragon...' Katerea thought before as her eyes looked back at Issei's crotch. She expected it to have gone soft. But it was truly shocking to see that it was still hard as diamand and twitching with desire.

"I'm ready for round 2 Katerea." Issei announced as Katerea looked up to meet Issei's grin as he looked at her as he recovered from his sexual high and ready to continue.

"I see... You have the stamina of a dragon. That's already a good sign." Katerea muttered as she sat up and lifted her body up so her lower region was right above Issei's member ready to be eaten by her insides. "Ready to lose your virginity Issei?"

Issei didn't give a verbal response. But answered by grabbing her perfect waist and pushed her body down onto his dick, making it penetrate through her tight pussy and spread it open like it was nothing. Katerea could barely comprehend what just happened as her royal pussy was being penetrated by a dragon's dick that reached all the way to her womb in the first thrust.

"AARGHH~!!!" Katerea screamed out as she squirted all over Issei's crotch as her pussy was ruined by this dragon.

"Fuck yes! This feels so GOODDD!!!" Issei roared as he started bouncing Katerea's body up and down onto his dick making the Devil king descendant see stars as her body was being used like some human fleshlight.

"YES! YES! YES!!! Keep fucking me ISSEI!!" Katerea screamed out as she hold on to Issei's chest for support as her body bounced on his dick that was entering her most deepest place that her husband has never reached.

Her hairbun fell out of place making her long dark brown hair fall over her back, but she didn't care. She wanted more of Issei's giant dragon dick. She was getting addicted to it and she couldn't care less about the original plan anymore. She just wanted to get fucked by this human stud and be his plaything for the rest of her life.

"You're mine! You belong to me and me alone!" Issei screamed out possessively as the older devil kept bouncing on his dick. Katerea couldn't control her body anymore as she squirting onto Issei's crotch while her tongue rolled out of her mouth in a perfect slutty smile.

"Y-yes~! I belong to you... I don't care about m-my husband anymore..." Katerea muttered in bliss as her hands gave out as she fell onto Issei's torso with his face being smacked by her giant breasts.

Issei grabbed her cum stained breasts and played with them with sadistic glee as the Leviathan princess let out a moan as her body was being abused by the red dragon emperor.

"Husband? I guess a devil like you would have someone as your lover huh? But that doesn't matter anymore! You belong to me! Body and soul!!! Here take my cum you devil whore!!" Issei screamed out as he thrusted into Katerea's cunt without remource. The devil king descendant could only hold on to Issei's body in a desperate attempt but deep down she knew she was done. There is no way she could return to be proper devil princess after this.

She faced the wrath of the dragon of domination and lost horrendously. Now she has to pay the price.

"Cumming~!!!" Both screamed as Issei filled up her womb with so much cum that Katerea's stomach started deforming immediately from the sheer amount. The devil princess could only scream into the bed as her pussy squirted out more of her juices along with Issei's semen that was leaking out of her abused hole as Issei's cock continued unloading so much semen into her maidenhood to the point it couldn't handle it anymore.

As both parties finally stopped cumming onto each other. Both were panting harshly as they were both drained of energy from their intense fucking as Issei failed to realise that the boosted gear had finally awakened on his right arm as the green jewel on the centre glowed for a moment as both parties were to exhausted to even reacted to it.

{TRANSFER!!} A weird aura surrounded them both as both Issei and Katerea could only lay there as the green and orange coloured aura surrounded them before it died down as both of them fell asleep in the bed.

(Later)

Issei slowly opened his eyes as his vision was blurry from his sleep. Raising his hand to rub his eyes. He opened his eyes again to see himself laying on the bed with Katarea laying next to him sleeping peacefully with a blissful smile on his face.

"So this wasn't a dream..." Issei muttered as his eyes looked at Katerea's naked body before looking back at his own. "Wait since when did I get a tan?" Issei asked as he noticed that his complexion had changed a bit. He had gotten tanner. Not as much as Katerea's skin colour, but several shades darker and that his body looked a lot more muscular than before.

{Looks like you have finally awakened partner.} Issei heard a deep echoing voice in his head making him look around before his eyes turned to the glowing green circle on his right backhand.

"You must be the dragon inside my sacred gear right?" Issei asked as the Dragon let out a small chuckle.

{Looks like you aren't an idiot after all. My name is Ddraig, the Welsh dragon and Red dragon emperor and you are my host Issei Hyoudou. I don't want to ruin your moment after sex. But I need to inform you about what happened after your first time with the Leviathan devil. After you came inside of her you somehow manifested the boosted gear and used one of my abilities called transfer. Which allows you to transfer the power you generate using the boost ability. But you somehow used it in reverse by after climaxing inside of your lover. You somehow transferred her power into your body and into the sacred gear... In a way it is simular to my rival's ability but the effects looks to be permanently from what I can tell...} Ddraig explained making Issei looked surprised.

"You're telling me that I became a devil?" Issei asked as Ddraig shook his head.

{Not yet. It only lightly affected your body allowing it to slowly transform itself into one of a devil's. But you also have awakened your dragon's aura which mixed with the devil's powers will slowly change your body into a hybrid of a devil and a dragon's. But you are currently still mostly human. But I assume the more you have sex with Supernatural beings. The more you will lose your humanity over time. It's up to you to either stop the process by stopping having sex all together or continue doing it and accept the consequences.} Ddraig explained making Issei ruffle his hair with his other hand.

"Well I can't really stop now since I only just begun with my sex life. Fuck it. Let's see how far I can push this new power." Issei exclaimed making Ddraig laugh.

{Hungry for power like a true devil. How amusing you are. Well I let you to it as your girlfriend is about to wake up. We'll speak again very soon.} Ddraig said as the green gem on his hand dissapeared. As right on cue, Katerea moved a bit as she has woken up from her sleep.

"Hello handsome~ You have changed..." Katerea greeted as she kissed Issei on the cheek. Issei grinned as he looked at her with a hungry look.

"Hello beautiful. As much I want to fuck you again... I'm really hungry and need some food." Issei replied as they made out in the bed. Katerea giggled as she broke the kiss and snapped her fingers. Right on cue a couple of female devils appeared in her room all wearing some maid outfits.

"Fix us a good meal." Katerea ordered as the maids nodded and hurried themselves to the kitchen to follow their mistress orders. Katerea smiled as she rubbed her face against Issei's chest. "Let's clean ourselves before we have breakfeast. You can explain what happened to you when we are done." Katerea suggested as Issei nodded as Katerea brought them to her private bathroom before filling the tub with warm water as they both entered and soaked themselves.

Both were still tired and exhausted from all the fucking so both just enjoyed each other bodies while kissing in the bath while Issei explained what happened to his body.

To say that Katerea was surprised was an understatement. If this ability is actually what Issei explained it was. That means he could obtain more power just by fucking women. Something so simple can become a massive threat to the entire supernatural world.

After cleaning themselves and heading to the giant dining room. Issei and Katerea were now eating a luxurious breakfast unlike any other Issei had before. Issei devoured his meal as Katerea finished her gracefully. After filling up their stomach Issei looked back at Katerea with a knowing look that made Katerea smile in return but Issei did something she wasn't expecting as Issei roughly grabbed her body and made her hug him now that he stood as tall as her.

"I don't know about the time. But I feel that we still a while before people are going to ask questions..." Issei muttered before kissing her on the lips which she gladly returned.

"I've looked and It is still midnight right now in the human world in Japan..." Katerea informed as Issei played with her breasts before smirking.

"Very good. I hope you don't have any plans with your husband Katerea~ You won't be leaving the castle anytime soon." Issei announced as he lifted Katerea up in the air which excited the old satan leader.

"Of course my lord~" Katerea muttered with lust as she knew the night was far from being over.

(Scene change)

"Yeah that is how you do it~ Shake that thing Kate~" Issei cheered as he was sitting on a very comfortable chair being served some orange juice by a very naked apart from an apron and gloves devil maid with short green haired that covered her left eye named Kirumi while infront of him was Katerea squatting down wearing almost nothing but some sexy stocking and some heels as she was twerking her round juicy tanned skin ass right infront for partner who looked at it with giant grin on his face.

"You like this Issei-dear? Katerea asked while giving her ass a good slap which made it jiggle for him. Issei grinned as he took an other sip of his drink from Kirumi who stoically watched her mistress degrade herself for the red dragon emperor. She knew that herself and all the other female servants were now nothing but his playthings which she accepted without a complaint.

Right on cue a second maid walked in wearing nothing but her apron and white gloves as the second maid walked towards Issei and leaned down before kissing him on the mouth.

"Master, here is the toy you requested." The silver haired maid said while handing Issei some kind of remote while the maid walked over to Katerea before taking out a dildo and inserted into her pussy in one single go making her let out a moan as the maid returned to Issei's side and hugged his left arm while Kirumi was by his right.

"Thanks Sakuya." Issei thanked before pressing the button on the remote as Katerea let out an other moan as she tried not to fall down on the floor.

"Aargh~! Issei-dear please be gentle... Argh~!" Katerea moaned out as her juices squirted out of her pussy and made a small puddle on the floor.

"Quite a slut you are Kate~ Show me why you are slut royalty!" Issei ordered as he pressed an other button which was sending Katerea into a sexual fenzy as she started to twerk again for her boyfriend who enjoyed every second of her misery.

"I've never seen lady Katerea make such lewd faces before..." Sakuya softly muttered as Kirumi nodded.

"She is truly a slut under her persona as Devil royalty." Kirumi agreed as Issei smirked as he pulled his pants down allowing his massive member to be free.

"Girls. Your mistress is a little busy. So take care of this while she puts on a show for me." Issei ordered as both maids obeyed and placed themselves on the large couch so they could properly give their new master what they wanted. As Issei was enjoying himself a double blowjob and a show. Issei couldn't help but grin as he thought of the future that was in store for him.

"Being the harem king is amazing~" 

Chapter 2: Cat in the Bag (Kuroka)

(Time skip)

It has been an entire month since Issei made a deal with the sexy devil, Katerea Leviathan, who, as agreed, became his girlfriend. In that entire month, Issei and Katerea continued their little relationship and managed to keep it hidden from the other devils and fallen angels lurking in this town, as from what Issei could tell, they weren't onto him yet.

This was surprising as Issei had changed a ton over the month as his body became much more muscular thanks to the constant reverse transfer of power he was doing on his girlfriend, which allowed him to slowly take bits of her power and absorb it into his body while at the same time becoming slowly more dragon thanks to the exposure of Ddraig's power which combined with the constant absorption of power started to turn the regular human into a devil/dragon hybrid.

Thankfully, Katerea quickly taught him to use a magic and aura concealment spell, which Issei learned quickly. Thanks to his magical powers originating from Katerea, it is easier for Issei to learn devil magic and even the Leviathan clan's special devil power: Sea Serpent of The End.

It was one of the stronger devil powers that allowed the user to generate and manipulate literal oceans and many different things. Issei was getting the hang of his new devil abilities very quickly, as Katerea was confident that with his improved body and devil power, he would be at the level of an upper high-class devil or perhaps an ultimate-class devil thanks to the boosted gear, which would give him a major advantage in any fight.

Now Issei was in his bed with his beautiful, tanned girlfriend sleeping on his body as Issei played with her long brown hair after a night of intense intimacy as even for a more than century-old devil. Issei was too much for a single woman to handle as Issei had to use a ton of lower-class maids to satisfy his endless libido that just continued growing the stronger he became.

"Sex with Kate is amazing... But lately, I've been craving more..." Issei muttered to himself as he pondered what to do next. Even with an army of lower-ranked maids and whores that Katerea provided for him, it wasn't enough to satisfy him.

He wanted someone he could fuck and make him work for it, and the only woman being able to compete with him was his girlfriend, currently sleeping on his body.

"Quality over quantity, I suppose..." Issei muttered as it was time for him to head to class as he quietly exited the bed and used a water magic spell to clean off his body from all the sweat, juices and cum that stained his body as he was completely clean in just a few seconds. Issei magically put on some clothes and inspected himself in the mirror. He was much taller than before, standing at 6.2 feet tall with a good amount of muscle on his caramel-coloured body. Issei nodded with satisfaction as he felt a pair of arms wrap around his neck. His girlfriend, who previously was a lot taller than him, was at the height of his chin as Katerea stood on her toes while burying her face in her boyfriend's neck.

"Morning, handsome..." Katerea greeted as she cutely yawned as her massive tanned boobs pressed against Issei's muscular back, who just smiled as he patted her head to help her wake up.

"Morning, beautiful. Did you have a good sleep?" Issei asked as Katerea nodded softly and planted a kiss on his neck.

"I did... But right before I fell asleep, I noticed you were still ready for more... Sorry that I couldn't satisfy you..." Katerea apologised as she simply couldn't handle Issei's libido all by herself after three or four rounds. She was done for the night and needed healing magic to keep going.

"No need to apologise, babe... But I was wondering if there any high-class women in the Satan faction or even the Khaos Brigade that could help you sate my lust..." Issei asked as Katerea opened her eyes and thought about it for a moment.

"There are a couple, but they are either from another faction, which could lead to trouble... But I know one that shouldn't be a problem if you plan to recruit her in your harem..." Katerea explained as Issei listened to her as the Leviathan princess continued.

"Her name is Kuroka... An SS-ranked stray devil for killing her master. She is a reincarnated devil and a Nekoshou, the strongest among the Nekomata Youkais. She is part of the Khaos brigade as more of a free agent more times than not. She is the safest option since no faction would go after you if you decide to mess with her.

Issei nodded as he considered possibly getting a catgirl into his harem, which wasn't a bad idea from the sound of it. "Sure... Do you think you can lure her into a trap for me?" Issei asked as Katerea thought about it before nodding her head.

"It wouldn't be too hard. Nekomatas, in a sense, are like devils, meaning they submit to someone stronger than them... I suggest meeting her and challenging her to a fight to assert your dominance over her. I've heard that Kuroka wants to repopulate the Nekoshous since they are very close to extinction, and she plans to do that by mating with someone from a superior race to hers. In other words, a Dragon would meet her criterion very well and being the Red Dragon Emperor would only give her more reasons to choose you as her mate." Katerea explained with a confident look in her eyes as Issei absorbed the information before nodding as he could understand why Katerea was suggesting this Kuroka.

"Very well... I'll go to school for now. Try to contact this Kuroka in the meantime so I can tame that kitty after school." Issei ordered his girlfriend, who nodded as she kissed him.

"It shall be done, my master. You head to school, and I'll go fetch Kuroka." Katerea replied as they made out again. Issei had to go to school before he was late.

(Later with Katerea)

Inside the base of the Khaos brigade, Katerea was wearing her usual revealing high-class dress as she sat by her desk doing a bit of paperwork while waiting for her guest to arrive. Katerea had invited Kuroka for a meeting because she had a job for the black cat, who agreed to meet her.

A black and purple magic circle appeared in her office as she continued writing papers. Different kanji symbols appeared that showed it wasn't a devil magic circle. As soon as the beautiful black cat Youkai walked out of it, holding the back of her hand to her mouth in a yawn, her tail whirled a bit in the air.

"Nya, what is with the sudden meeting, Katerea?" the Nekoshou asked the devil princess, who merely extended her arm towards the guest chair across from her on the bureau. Kuroka slowly walked over and sat on it, her legs hanging from the armrest. She sat as she pleased, even in front of one of the Khaos brigade leaders.

"Sorry for the sudden summoning, Kuroka," Katerea said as she smiled at the seductive woman. "I've called you here for a little job I have for you. A boy in the human world is a potential sacred gear user, and I want him eliminated. I can't send any of my subordinates because he is in the town of Kuoh under the protection of Rias Gremory and Sona Sitri, who happened to be both younger sisters of the devil kings. I believe you understand why I chose you for this mission." Katerea explained straightforwardly as Kuroka's hazel eyes stared at her momentarily before yawning again.

"Nya~ I see... You wish me to take out a brat before the little devils get their hands on him. Then the sacred gear of this human must be a Longinus if you want him gone." Kuroka deduced as Katerea nodded her head as she took a sip of her coffee.

"Indeed. We can't let the devil traitors obtain a Longinus amongst their ranks." Katerea affirmed as Kuroka nodded before cutely tilting her head.

"But would it not be best for the Hero faction to take the kid Nya? They can easily kidnap him and mind-control the user. I'm certain they did the same with the user of the Annihilation Maker." Kuroka asked as the Leviathan devil shook her head.

"Giving them another Longinus would make the Hero faction much stronger. They already have three Top-tier Longinus sacred gears in their ranks. If it weren't for Ophis, they would have also tried to eliminate us and you. Remember, the factions of the Khaos brigade are under Ophis' command, but our goals differ a lot. Ophis is the only thing preventing us from attacking each other." Katerea explained as Kuroka could see the logic of not giving the Hero faction another Longinus sacred gear since that would make them the strongest faction of the Khaos brigade without a doubt.

"Very well, I accept. For payment, can you book me a nice vacation in one of these luxurious underworld hotels, Nya~?" Kuroka requested as Katerea nodded her head.

"That won't be a problem. Just give me the head of the user, and then I'll book your vacation. I'll send someone to give you all the info you need." Katerea accepted as Kuroka nodded her head and stood up. She created another magic circle as she was about to pass through it.

"I'll get the job done after my nap. But I can tell you have been enjoying yourself lately, Nya~" Kuroka teased with a wink. Katerea immediately knew what she was talking about as she watched Kuroka leave. Katerea waited momentarily for the magic circle to disappear, and a small smirk appeared on her face.

"Don't worry, Kuroka... You're going to enjoy what is coming for you..." Katerea promised as she made a magical call to her boyfriend, who picked up.

[Hello babe, miss me already?] Issei joked as Katerea did want to see him again, but she could wait for tonight.

"Of course I miss you. But I called to tell you I've sent Kuroka on a false assassination mission. So be on your guard, as she is still a deadly individual." Katerea warned, feeling Issei nod from the other side.

[Uh-huh. Don't worry. I have everything covered. Thanks for the help, Kate.] Issei thanked as Katerea smiled at her boyfriend's thanks.

"Everything's for you, darling. Let me know how it goes," Katerea replied as Issei chuckled.

[Will do. See you later.] Issei broke off the call as the Leviathan devil was alone in her office. As she was about to continue working on her paperwork, a new voice stopped her.

"You're hiding something... And I want to know..." Katerea looked at the seat where Kuroka had sat a minute ago. A little girl wearing a gothic outfit sat in her place, and Katerea felt her heart skip a beat.

"Ophis..." Katerea addressed, knowing better than to lie to her boss. This little girl was the same being that the God of the Bible was terrified of. "Well, allow me to explain..."

(With Issei)

As the day passed, Issei returned home from school because he felt that the black cat had arrived in Kuoh and was watching him. While he couldn't sense her, his survival instincts were sharpened to the point that he could detect malice easily now.

So, deciding to let the metaphorical cat out of the bag, Issei went to the park a bit further away from the school as he knew that the devils were still occasionally watching him from time to time.

Now that nobody except himself and his assassin were in the park, Issei smirked as he sensed Kuroka make her move. A powerful barrier was erected around the park, trapping him alone with no escape. Issei turned to look at a specific tree. He saw the sexy black cat lying on a large tree branch with her legs dangling.

"Hello, handsome Nya~" Kuroka greeted the hybrid, who turned to look at her and whistled. He didn't imagine Kuroka being such a fine woman.

"Hello, beautiful. What are you doing this afternoon?" Issei asked with a confident smirk. Kuroka smiled, and she liked his attitude. She lay on her stomach, which gave Issei a clear view of her cleavage.

"Nothing much, Nya~ But I've been paid to take out a certain pretty boy~" Kuroka answered as it wasn't a big deal, which made Issei chuckle as his gaze hardened at her.

"And why would you do that?" Issei asked as he raised his hand towards her like a gun and fired a beam of high-pressured water out of a small magic circle from the tip of his finger. The beam fired straight at Kuroka, who dodged it using some form of Youkai magic, causing the branch and a bit of the tree to be destroyed.

Kuroka appeared behind Issei as she licked her lips and pressed her body against his back. "Nya~! So rough... I like that in a man~" Kuroka whispered as Issei tried to grab her kimono, but she vanished again. Using her magic, she was about to appear a bit away from Issei, but he predicted her and fired another beam of high-pressure water at the floor, causing a small explosion, which sent Kuroka hurtling back as she was surprised at Issei's sharp senses.

Kuroka quickly stood back up, and her eyes had a feral look in them as she licked her arms. "Not bad, Nya~ But one thing you should remember..." Kuroka started gathering her magic as Issei was prepared. "Cats hate getting wet!" Kuroka fired a barrage of demonic youkai magic at Issei, who quickly created a large water bubble around him that nullified the attacks.

But that was a distraction, as under Issei, a large magic circle appeared. The water bubble around him dissipated, and Issei's body was being pushed to the ground.

'Gravity magic...' Issei thought as he slowly pushed his body up from the ground with brute strength. Kuroka used this chance to come close and delivered a magically enhanced knee to Issei's face.

"How do you like that, big boy?" Kuroka asked with a grin as the force of her knee sent a shockwave through the air. However, her grin quickly faded as Issei grasped onto her leg, surprising her. Issei stood back up, even with the effect of the gravity spell pulling him down, as he grinned at the black cat, who felt a shudder run down her body.

"Need to do better than that!" Issei yelled as he threw Kuroka back, making her land gracefully on her feet. Issei shattered the magic circle under him as he whipped the blood from his nose. "Let's dance..." Issei dashed at Kuroka, who smirked back as she liked the challenge. She blocked Issei's punch with Touki and used her other hand to fire an energy blast of Senjutsu at him, which Issei dodged as he spun around and tried to kick Kuroka, who turned her body into mist. Issei blinked before turning around to narrowly dodge a claw slash from Kuroka.

"I like this dance, Nya~," Kuroka said. Issei grinned as he grasped her leg again to pull her body close to his before suddenly manifesting his Boosted gear on his arm.

{Boost!} The Boosted gear roared as Issei cocked his arm back right when Kuroka came close to him. As he delivered a powerful punch right into Kuroka's gut, she was shocked by the sudden amount of strength that punch had as she was sent back, crashing into the tree, staggered from the powerful blow.

Taking this moment to finally put an end to this fight, Issei gathered as much water as he could. Kuroka held her stomach as she saw all the water create a cyclone in the air before it took the shape of an eastern dragon, with Issei floating in the air.

{Transfer!} "Go!" Issei yelled as he transferred the power to the water dragon that grew larger before it roared as it headed towards Kuroka, who tried to teleport away but was too late as the water dragon crashed with its full might into Kuroka's body, creating a massive explosion.

Issei descended back to the ground as the dampness of the water explosion started to clear. The Red Dragon emperor walked over to where his attack made contact. Issei saw Kuroka knocked unconscious and her kimono completely torn to shreds.

"Looks like I'm the winner..." Issei said while his sacred gear disappeared as he shamelessly looked at Kuroka's naked form, which started to make his dick rise in his pants at seeing the naked beauty. Issei knew that he couldn't hold back any longer as he looked up to see that the barrier was still up, so there was no worry of anybody bothering him as he pulled his pants down to let his mini dragon be freed.

Kuroka was too out of it to wake up, so Issei went on his knees and started rubbing the tip of his dick against the catgirl's entrance. Issei let out a sigh as he pushed his dick into Kuroka's pussy which had a small black bush above it that looked very attractive, in Issei's opinion.

"Time to make this kitty mine..." Issei said in a dark tone as he thrust his dick forward, sending a powerful shock coursing through Kuroka's body, who woke up as she let out a high-pitched moan.

"NYA~!! Fuck~!!" Kuroka came from the single thrust alone as she looked at the man who had just defeated her and was now taking her body as his prize. Her hazel eyes were conflicted about what she should do, as a part of her just wanted to rip his head off with her claws. But her own Nekoshou's instincts were craving for this hunk of a man to mate with her.

As Kuroka froze from the conflicted feelings in her body, Issei pulled back and thrust inside of her again, which sent another spark of pleasure that shattered her doubts as her inner Youkai's instincts took control over her rational thoughts as her long, luscious legs wrapped themselves around the random guy's waist as she pulled him deeper.

"Nya~! If you are going to fuck me... Then fuck me good, Nya~" Kuroka's words, along with the tempting look in her hazel eyes, was all that Issei needed to start thrusting in her pussy like a wild animal as Issei couldn't help but feel Kuroka's walls wrap around his length as if her body was trying to milk his dick from the inside.

"Shit... This feels amazing..." Issei muttered as his hands moved from Kuroka's waist to her perfect melons. Issei grabbed a handful and started fondling them while thrusting into the black cat's pussy, who was moaning out loud as her eyes started darting around.

"Y-you're g-good at this..." Kuroka admitted that she had her fair share of lovers. But, none of them were as skilled as Issei, who was massaging her breasts and thrusting inside of her in perfect sync, causing both of her sensitive places to be overstimulated with pleasure.

"I know... I had a lot of practice." Issei said with a cocky tone as he leaned down and put Kuroka's nipple in his mouth, and started sucking on it without slowing down the pacing of his thrusts.

"F-fuck~! Y-yes, keep sucking my boobs! They're so sensitive~" Kuroka begged as her two cat tails wrapped around his leg as she didn't want him to stop making her feel this good.

Issei obliged as he put both nipples in his mouth and sucked on it hard, making Kuroka tilt her head back as she had an orgasm from having her nipples sucked. "T-that was amazing..." Kuroka said between pants as she realised that Issei hadn't stopped yet as he continued to thrust in her slutty pussy Kuroka couldn't believe that he still could go since most guys wouldn't last even a minute with her. But this stranger that she was sent to kill was making her feel like she could do nothing but let her fuck her, which only turned the catgirl on knowing that.

"C-cum already, you fuck..." Kuroka urged as her hands reached for Issei's head and grasped a handful of his hair to pull his face from her boobs. Issei just smirked at her as he thrust deeper in response.

"Cats really are impatient creatures, huh?" Issei teased as Kuroka purred in a threatening way. Issei just slapped her tit, which caused her to moan.

"Agh~! Stop it..." Kuroka begged as Issei decided to give this kitty the milk she was craving as he started thrusting faster and harder into her, which made the catgirl place her arms around his neck as Issei started pushing his entire length inside of her as Kuroka's eyes started to go cross from the ruthless fucking she was receiving.

"You wanted me to cum, right? Then here, have it!" Issei roared as he came right into Kuroka's womanhood which made the catgirl moan out in delight as she felt her insides being inflated with the young man's thick, potent cum that felt more like cream than actual semen as the catgirl could do nothing but shudder with her tongue falling out of her mouth as her brain was getting turned into mush.

"S-so g-g-gooddd~!!" Kuroka shrieked as her legs hugged Issei's body tighter to make sure that he disposed of every single drop in his balls Kuroka was certain that her eggs were fertilised with this stranger's thick, potent cum as she could feel his seed claiming her body as his property.

Issei let out a sigh as sweat rolled down his face as he summoned his Boosted gear again as Kuroka was still stuck in her sexual high. "Time to test this out..." Issei groaned as the Boosted gear started shining brightly.

{Equivalent exchange!} The Boosted gear announced as Issei and Kuroka's bodies were covered in their auras. Kuroka was purple and black while Issei was red and green, and the colour of their auras changed with one another as Kuroka's aura started to swirl around Issei's body as his aura was doing the same with Kuroka's body as both of their bodies absorbed the other's aura.

"W-what is this~?! This f-feeling amazing~!" Kuroka screamed out in bliss as her body was suddenly filled up with Issei's aura, made her reach another orgasm all of a sudden as the feeling of pure power coursing through her as right on top of her pussy right where her womb was a tattoo started to form of that of a dragon's head as Kuroka could only moan as she experienced something she had never felt before.

On the other hand, Issei took a deep breath as he calmed his body by absorbing the Nekoshou's aura and power. Issei felt himself slowly awaken his new arsenal of abilities, and he looked down at Kuroka with a triumphant grin.

"Looks like my plan has worked," Issei said as he stood up and watched as Kuroka slowly started to regain her sanity. Her hazel eyes locked onto the man who had just assaulted her and tried to use her nails to scratch his junk now that his guard was down. "Sit," Issei said in a casual tone as Kuroka's body suddenly moved without her permission as she sat on her butt and had a look of total shock on her face.

"W-what happened?" Kuroka asked as Issei just grinned at her as his dick rose again to complete erection as he walked towards her.

"In short, what I did was a technique that I named equivalent exchange. Using the Boosted gear, we transfer the other person's power through reaching both our orgasms as both our bodies absorb each other's essence and auras, which allows me and you to obtain the other's power to a certain extent. In short, I obtained some of your Nekoshou powers while you obtained some of my power, which is proof thanks to the mark on your body, which is also a master/slave seal on top of the equivalent exchange." Issei explained as Kuroka's eyes widened as she had been enslaved by another man again after going through everything that had happened to her in her past to protect her sister, only to end up in a worse person's clutches and this time. It doesn't look like she won't be able to escape, no matter what.

Kuroka didn't know what to feel as she wanted to lash out at him, but her body refused to move against his orders as Issei walked over to her and grasped her by her luscious black hair. "You're now my personal kitten for me to fuck and breed whenever I want." Issei's words replayed in Kuroka's head, and she just slowly nodded as her mind couldn't fight against it.

"Yes... My master Nya~!" Kuroka's previous conflicted look turned into one of pure slutty obedience as Issei grinned before kissing the catgirl on the lips as he successfully captured the SS-rank stray devil as his servant.

(Scene change)

Back in his house, Issei was lying on his king-sized bed as his two sluts were on his bed, making out while completely naked. Issei looked on with a grin of anticipation as both evil women made out with each other.

*Hmm Mhmm Slrrr~!* Their sloppy noises turned Issei on more as he grinned as both sexy devils broke their kiss and looked at their master.

"Anything you desire, my master?" Katerea asked as Issei shrugged his shoulders.

"Not really. But it is rude to have your fun while leaving your master all alone." Issei answered as Kuroka leaned forwards as she pushed her massive melons up to Issei's dick as Katerea quickly copied the catgirl's movement.

"Then let's please our master like the servant we are, Nya~!" Kuroka suggested with an eager smile as she pushed her breasts against her master's penis, with Katerea doing the same as Issei's dick was suffocated by the two's pair of juicy funbags.

"Then show it to me." Issei urged as both women giggled as they started moving their boobs up and down to stimulate his throbbing dick. Issei couldn't believe his life at the moment as getting a double blowjob from a sexy older tanned woman, and a sexy catgirl was something he never could dream of, but it looked like he had something else to check off his bucket list.

"He's already so hard~" Katerea noted with an eager smile as she and Kuroka started moving in sync before leaning forwards as both of them latched their mouths on the tip of their master's dick that was twitching with need. Both of their wet mouth kissed his length while occasionally connecting their lips with each other while they moved their breasts in sync.

Issei watched with an amused smile as he relaxed his hands behind his head as he let his sluts do their thing.

Both Katerea and Kuroka started to move their boobs faster to try to get their master's delicious seed from his penis as the Leviathan princess let some of her saliva fall in between her and Kuroka's cleavage. It makes them feel better for their master.

"Is this to your liking, master?" Katerea asked her boyfriend, who nodded in return as the tanned skin beauty latched her mouth around the tip of his dick and started sucking his neck while continuing to use her breasts to stimulate his length.

"No fair, Nya~! I want master's milk!" Kuroka whined as she wanted to have a taste of his dick. Katerea pulled her face back, her mouth covered with saliva, and she smiled at the catgirl before kissing her on the lips.

"Go ahead..." Katerea gave her permission as Kuroka smiled, and she took her master's dick in her mouth and started sucking it feverishly. As Kuroka was too focused on milking for his semen, Katerea decided to attend to her master's nuts. She started massaging them with her hand before taking one large ball in her mouth and slobbered on it while sucking.

Issei's eyes rolled up a bit as the combined attack on his dick, and balls was a bit too much for the Red Dragon emperor, who let out a low groan as he was getting closer to his orgasm.

"Shit... I'm going to cum..." Issei announced as Kuroka's cat ears moved up as she started sucking harder on her master's dick to get the so delicious milk she craved for.

Katerea, on the other hand, didn't want the catgirl to get all of their master's semen all for herself and pulled Kuroka's face off before taking her master's dick in her mouth and continuing sucking it, making the catgirl annoyed as she wanted to drink, their master's semen.

"Kuroka, come here..." Issei's sudden order made the Nekoshou look at him before smiling as she crawled onto his body. Issei pulled her body closer before grabbing her fat ass with his hand and latching his mouth against her boob as he started sucking on her nipple.

"Nya~! Master's tongue is massaging my nipples~!" Kuroka let out a sharp moan as Issei's slapped her ass for making so much noise. Kuroka yelped again from the slap as Issei looked up to meet her eyes. He placed her nipples right between his teeth and bit slowly, causing the Nekoshou to let out a loud cry as she came on the spot.

Katerea, who was watching, continued sucking off her master to the best of her abilities as she used her hands to massage his balls at the same time, which helped as soon as Kuroka had her orgasm, Issei was about to reach his.

Letting go of Kuroka's nipple, Issei growled as he was about to bust. You two next to each other now!" Issei ordered as both girls quickly sat next to one another Issei stood up in the bed while stroking his dick right in front of their faces.

Both Katerea and Kuroka eagerly awaited their master's divine seed. As Issei reached his peak, they opened their mouths as wide as they could.

"C-Cumming~!" Issei yelled as his semen shot out of his dick right onto both of his sluts' faces. Both tried to catch as much as they could with their mouth, but most of it landed on their faces making them look like they had both just gotten a bukkake from a group of men.

"S-So much..." Katerea muttered while licking her master's precious semen around her mouth as she looked at the Nekoshou, who was licking all around her face and scooping it up with her hands like a homeless man trying to scrape food off the ground. Katerea's eyes were filled with lust as she leaned in and kissed Kuroka on the lips again while swapping semen in their mouths. Issei looked down at them while his meat started to get erect again from the lewd display.

"Such slutty whores you two are..." Issei muttered as his dick was back to full mass. The hybrid pushed both girls onto the bed before placing himself in between Kuroka's legs as he rubbed the tip of his dick against her entrance, making the catgirl purr in anticipation.

"Master Nya~! Please fill my slutty pussy with your seed Nya!" Kuroka begged as Issei just let out a hot sigh as he pushed his dick inside of her, spreading her slutty folds open as he pierced into her with a single thrust. "NYAH~!!" Kuroka shrieked as her hands clutched the sheets of the bed tightly as her body shook from the powerful thrust from her master Katerea smiled at the dangerous stray devil whom her master tamed into his personal slut.

"Fuck her good, master~ Mark that pussy as yours..." Katerea's sexy voice fueled Issei's drive more as the Red dragon emperor started thrusting harder and faster in Kuroka's slutty pussy Katerea moved behind her master and pushed her face in Issei's buttcheeks as she started rimming him.

"F-fuck~!" Issei cursed as his girlfriend's tongue started punching against his backdoor one of his hands that was on Kuroka's waist moved to take hold of Katerea's bun as he continued to fuck the catgirl while the devil started licking his asshole.

"M-Master~! Harder... N-Nya~!" Kuroka begged as Issei looked back at the moaning cat and slapped her huge tits with his hand sending another shock of pleasure coursing through her body.

"Shut up slut! Who are you to give me order?!" Issei yelled as he had trouble focusing his eyes on his second slut Katerea's tongue kept punching into his anus, making it harder for him to focus as he felt himself getting closer to his peak. "F-fuck~! Katerea... I'm going to cum again..." Issei muttered as his girlfriend heard what he said, which only made Katerea push her tongue deeper and hit a particularly good spot which caused Issei to cum inside Kuroka's slutty entrance. "S-shit~!!"

Kuroka's eyes widened as her master started unloading his milk inside of her needy pussy. She could feel his semen reaching her already-impregnated womb as Issei drowned her womanhood in his thick semen. "S-so much~!!" Kuroka's eyes rolled up as she bit her bottom lip hard as her body was being filled up like a balloon. The Nekoshou could feel power getting drained thanks to Issei's sacred gear, which left her body too weak to sit up straight afterwards as, not soon after, Kuroka was lying on her back, drifting off to sleep.

Issei let out a tired pant as he pulled his dick out of the sleeping catgirl. He came back to his senses. He chuckled at Kuroka's body as he turned to look at his girlfriend, who was looking up at him with a lustful smile on her face.

"I think you still need to train her properly, master~" Katerea teased as Issei pulled her closer to his body as he was far from finished for the night.

"Indeed. But for now, come here." Issei pulled the Leviathan devil back up before turning her body around so she was now Infront of him with her arms and legs on the bed while her ass was up in the air. "You liked playing with my butt, huh? Then don't mind that I play with yours..." Issei said with a sadistic grin as he rubbed the tip of his dick against Katerea's backdoor. The older woman took a deep breath to prepare herself as, while they had done anal before, Issei's dick was way too big for her to fit in her asshole.

Katerea turned her head to look back at her master and brought her hands to her asscheeks to give him better access to her backdoor as she used a bit of magic water to lube her butthole up.

"P-please ruin my asshole again, my love..." Katerea pleaded with a needy tone as Issei let out a hot breath before pushing his dick into Katerea's butthole. The devil clenched her teeth as her anal walls were being spread apart. "S-shit..." Katerea muttered as more of Issei's dick was entering her anus. Issei slowly filled her up with his dick as the Red Dragon emperor clenched his teeth as he sheathed around half of his dick in his girlfriend's anus.

"F-fuck, this is so tight..." Issei cursed as his lust started to take over his thoughts again. He pulled his dick back a couple of inches before thrusting himself as hard as he could. He forced his entire length inside of the devil princess' butthole Katerea's eyes widened as she shrieked out in pain while she came from the powerful thrust. Her juices squirted on the bed, leaving a large wet stain, as Issei's eyes rolled back as Katerea's butthole tightened more as she came.

"T-to-to b-biggg~!!" The leviathan devil shrieked out as her brain was overstimulated with pleasure as she could do nothing but bite the sheet of the bed with her teeth as her lover started pulling back and fucking her royal anus with a feral grin on his face.

"That's it..." Issei muttered as he started fucking the devil's asshole with all his might. The bed started shaking with each thrust as Issei slapped her ass a couple of times. "You devil whore... You love it when I fuck your ass, right?!" Issei asked while giving her ass a much harder spank which caused the devil to orgasm from the pain.

"Y-yeshh~! I love it when you fuck m-my slutty asshole!" Katerea screamed out in bliss as Issei just grinned back at her before slapping her ass again and again while thrusting his dick in her slutty asshole that had reshaped itself to fit his size as Issei continued to pound the delicious tanned ass that only belonged to him.

Issei's eyes rolled back as Katerea's asshole was milking his penis for his cum. Issei started to reach his peak again from the intense fucking.

"Fuck~!! I'm cumming!" Issei announced as Katerea could only moan while clutching the bed for her dear life. Issei thrust one final time in her asshole before dropping his seed in her anus Katerea's eyes could do nothing but roll up as her mind started drawing a blank as her body shook from the intense orgasm.

'S-so m-much...' Katerea thought as she slowly succumbed to sleep. Issei felt that his girlfriend had fallen asleep as well as Issei slowly pulled his dick out of her asshole as he looked down at his two dominated high-ranking sluts as his mini dragon was still erect.

"Well, that just means that I need to find more sluts for me to tame," Issei said as if it wasn't a big deal, which it wouldn't be as time went by. There wouldn't be any girl safe from his clutches.