(Was also listening to this song while I was writing this book.

https://youtu.be/4kNedEPsHxw

Hope you guys like this oneshot! =D)

Flipping through the pages of the book, Song stares down at the writing inside the book as she looks through it with a small smile on her face as she reads a story about vampires. She was wearing her normal purple and black stripped shirt with a black hoodie that had an eye roll emoji on the back of it that said "Do I look like I care?" on it. For pants she wore blue demin skirt with blak leggings and purple converse. 

The fire emitting the light through the room illuminated the girl's face, her bangs and hair purple but her bangs had crystal white streaks, and she had a small braid on the side of her head that reached down to her shoulder. Her bangs hide her left eye, despite it having a black eye patch with a purple rose over it. Her left however was completely shown without fear, a crystal white color that made it sparkle to life like it was snow illuminated by light. 

As she read her book, she didn't realize that somene had entered the living room, nor did she heard that said someone was walking towards her from behind the couch. When she felt arms wrap around her shoulders it was then she let out a surprise yelp, making the person behind her chuckle. Knowing who it was now made it hard for her to hold back the urge to punch their arm for scaring her like that. 

"What sort of book are you reading there, Song?" Belphegor as he leans his head over her shoulder to take a peak at the book. Song glances at him before looking down at the book again before speaking. 

"Its a book about vampires, I sort of found it in the library here so I decided to take a bit of a look into it since I got curious about it." She said. The seventh born looks at her with a curious look on his face. 

"Are you interested in vampires?" He asks her, making the girl glance at him in surprise before nodding her head with no hisitation and gave him her normal smile that made his heart silently scream at how adorable it is.

"Of course! I actually love vampires despite how scary they are. I heard about them when I was young and I got really scared of them but once I got older and learned more about them I got a lot more curiouser and curiouser about them. I only looked at fantasy books or fairy tale stories about them however, since I couldn't find much stories about them." She said to him, making Belphie look to the side with his purple violet eyes. 

"I see..." He mumbles quietly before closing his eyes and lets out a quiet chuckle before looking at her again. 

"You humans are funny, you know that?" He asks her, making her tilt her head in confusion at his words and lets him continue. 

"You see vampires as monsters, right? And yet you're still fascinated by them." He said, making her cheeks turn red and she looks away embarresed, making the boy smirk slightly at the sight and chuckles before asking her. 

"Hey Song, do you believe vampires exsist?" He asks, making Song look back at him before thinking for a while and answers him. 

"Well, you and your brothers are demons, right? So if that's the case then yes, I do believe they are real. I mean, at this point if anyone else had came here to Devildom and came to realize that demons, angels, and witches exsist, then it shouldn't be unatural to think that maybe its possible that vampires could exist as well." She said, making Belphie smile, causing Song to blink at him in a bit of concern for herself since every time she saw Belphie smile like that, it sent shivers of excitment down her spine.

"I see...if that's the case then-" But before Belphegor could continue, the doors from the hall opened and Levi came rushing inside of the living room. His eyes were wide and he had a panicked look on his face. 

"H-H-Help! We've got a problem...!" He shouted, making Song look up at Levi in surprise as Belphegor looked at him in surprise as well before going over to his older brother. "Whoa, Levi. What's wrong? Why're you freaking out?" He asked and what he says next made Song and the seventh born demon concerned. 

"It's Beel, something's wrong with him!" He said, making Song close her book and get up from her seat. "What do you mean something is wrong with Beel? Is he hurt?" She asks, making a concerned look on her innocent face. Levi, who was holding back the urge from hugging Song to calming her down, quickly explained before she could ask more. 

"N-No, he's not hurt like that. He is in agony....like he's starving, but....not in the way he usually is. It's...different..." He said, making Belphie blink in surrpise but then, Song noticed that he was making that face when he knows what's up. 

And she knows that he's hiding the real reason what was wrong if he hadn't said his next words while looking to the side as he moves some hair from his face. 

"I see, I wonder what the problem could be?" He mumbled before looking back at the purple haired girl. "Song, would you mind coming with me? I'm going to go and check on him so if you want you can come." He said. The girl wasn't sure why but she nodded her head in agreement that she would come with him. 
---------

Once they had gone down the hall, Song could hear Beel whimpering and groaning in agony, she could instantly tell that it sounded like he was really hungry but...Levi was right, it did sounded a lot more different from his usually sounds he makes whenever he was hungry. 

"See! I told you! You can hear it from down the hall!" Levi said, making Song look worried and she galnces at Belphie who was holding her hand tightly since he could tell that she was getting a little nervous and scared. "Thank you, Levi. It's alright, he probably ate too much food. So you can get going now. I'm here and so is Song." He said, but Levi still looked really worried. 

"But-" Suddenly he was cut off when his D.D.D started ringing and he quickly brings it out and froze. "Crap, I gotta get going and met up with Siren so we could watch Pullea Madoka Magica!" He said and quickly hurries to his room, forgetting his worries for Beel. Song looks over at Belphie in worry and felt him pet her head and saw his soft warm smile. 

"Don't worry, come on, let's go inside and check on Beel." He said and goes over to the door, opening it up they saw Beel sitting on the floor against Beel's bed, Song's eye goes wide and she lets out a concerned gasp as she saw Beel and sees Belphie go towards his twin brother. "Alright then..." He mumbled as Beel whimpered. 

Song rushed over to Beel and knelt down before the orange haired male, sitting on both knee she carefully places a hand over his own. "Beel, are you alright? What's wrong?" She asks in worry, but Beel only let out a whimper in response. She then realized that Beel's horns were out and showing along with his wings despite not being in his demon form. 

"Its alright, Song." Belphie said placing a hand on her head and giving it a gentle pat, making Song look up at him in slight shock and surprise at how reasuring and calm he sounded. "I know what's causing this, besides it's not really because he ate too much, so just let me take care of it okay?" He said making Song look at him in worry but she slowly nods her head, leaving the problem to him.

Smiling Belphegor looks down at Beel and sees him let out an annoyed sigh as he knelt down in front of Beel who looked at him with his matching color eyes that are full of want and hunger. "...Belphie..." He whimpered out and hugged his brother tightly and buried his face into his neck, making the seventh brother sigh softly and pet his head gently. 

"Yes Beel, I'm here. Your thirsty, aren't you?" He said and Beelzebub whimpered and nodded his head and looks back up at Belphie who rests his forehead against his and smiles softly. "It's okay, I'll give you some of my blood, like always." He said, causing Song to stare at him wide eyed at what he had said. 

"What..?!" She whispered out in shock as he looks at Belphie then at Beel then back at Belphie again, then looks back at Beel again. Confusion and shock written all over her face. "Really Beel, why is it always like this? You never realize how thirsty you are until you're on the verge of passing out." He said, making Song look at Belphie in surprise. 

"S-So...B-Beel's a vampire...?" She asks nervously, not sure how to take this all in, but she tries to look calm and control her urge to freak out about this. She sees Belphie turn his head to look at her and sees him nod at her, confirming her words. 

"Yes, and he's not the only one." He said and saw him softly smile at her. "I'm actually a vampire too, Song." He said, making Song's single eye widen even more. 

"Belphie...hurry...." Beel whimpers, making the two turn their attention back to the hungry vampire (demon?). "I know I know, calm down Beel." He said and pets his head. "But don't go for my neck, okay? It leaves really obvious marks." He said then rolls his sleeve of his jacket up. "Here, you can drink from my arm today." He said and in an instant, Beel goes over and takes Belphie's arm and bites into it. 

Song's eyes go wide in shock as she hears Beel chug the blood from Belphie's arm, and she saw blood come out from Belphie's arm and she sees Belphie flinch and whince in pain. 

"Ugh, Beel...slow down. Come on... Your supposed to SIP, not CHUG. Song is right here watching, you know?" He said, making Beel slow down and move from his arm and licks the blood from the mark. The orange hair male frowns and whimpered. 

"It's not enough. I want more Belphie I need more..." He whimpered out and looks at Belphegor with begging eyes. "Please, let me have more blood..." He begged him, making the sleepy (demon?) vampire sigh and pet his head. "I'd want to give you more Beel, but with hungry as you are, I'll be as dry as a mummy by the time your done drinking." He said, but then smiled. "But don't worry, okay? Because look..." He said as he glances over at Song, who was still sitting down in front of the two, with a glint in his eyes that made her heart skip a beat and she freezes in fear as he spoke his next words. 

"Song's here to help, too." He said, making the purple hair girl shake violently in fear and....excitment. She wasn't why, but the idea of having Beel and Belphie drinking her blood was somewhat inticing to her, but she also felt really scared because, well....she was not really sure about the pain that she could possibly feel, she was used to pain before, since she was abused by her father long ago. 

But this was different. This was Belphegor and Beelzebub, the twins who had stolen her heart and made her feel what she hadn't felt in the longest time; love. However, she was still not used to physical contact. The last time that was proven was when Mammon had suddenly came over and jump scared her by grabbing both her shoulders, Song had let out a scream that made everyone panicked and thought that someone was trying to attack her but when they saw that Song had hurt Mammon badly enough to almost had broken his noise, but she was huddled against the wall and curled into a ball, crying and hypervenalating from a panic attack. 

Beel and Belphie wouldn't let anyone else get close to her after that entire delima, especally Mammon who had already been forced to apologize to her thanks to Lucifer and Polka once she had eventually calmed down, however Belphie was still holding her and was growling threateningly and spoke in a dangerous tone that if he had ever tried to touch her like that ever again then he was going to be buried ten feet into the ground with all his body parts seperated and cutted down into shreads. 

And it wasn't going to be the witches that had been the ones who had created his deathbed. 

Beel was also very protective of her as well after that moment and he was completely considered as Song's personal bodyguard. Whenever a demon would try and eye her Beel would glare them down in a deadly look and his purple eyes would turn red in seconds, giving them a warning that if they touched her, they wouldn't last very long. 

Noticing how scared the girl was, Beel frowned. "...Song, are you scared that I hurt you?" He asks with a worried look, making the girl look at him in surprise but she shakes her head quickly. 

"N-No of course n-not...! I-I know you wouldn't hurt me like h-" She cuts herself off and bites her lower lip harshly and inhales deeply and looks down. "L-Like h-him..." She finishes, making Beel and Belphie frown. They nearly let out growls since they knew she was talking about her abusive father. 

Beel just crawled closer to Song and placed the small girl into his lap and nuzzles her head and kisses her forehead, moving her bangs from her left eye to show her eye patch. She shivered and lets out a small whimper and shuts her crystal white eye when she felt her hidden eye being shown but felt hands cup her cheeks. "Song its okay, it's only me and Beel here...you don't have to be afraid, we're right here...its just us." She hears Belphie sweetly whisper into her ear, making the girl's cheeks turn red and she slowly opens her single eye, she sees Belphie softly smile and notices that is demon horns were now out as well, but his tail was not. 

"You're such a kind-hearted person, Song. I can barely believe it. As soon as you heard Beel was suffering, you agreed to following me, no questions asked." He said softly, stroking her cheek as Beel softly kisses the left side of her neck, sending shivers go down her spine but she felt the sixth brother rub her back in soothing circles, causing her to be lesss tense. Song then looks at Belphie with her cheeks turning red as she then stutters out her next words nervously. Avoiding the urge to shut her eye and look away from him. 

"S-So...i-it w-was a-all a l-l-lie...?" She asks him. And sees Belphie softly smile and continue to brush her cheeks with his thumbs and kiss her forehead as he whispered to her in his soothing voice that made her heart skip a beat. 

"Well, partly. Beel was in agony. But when I heard Levi say that, I figured it was the perfect chance to get you to come here with me." He said as he gently boops her nose. 

Damn, so she was right when she thought that he was actually hiding something once Levi told them what was going on with Beel earlier in the living room. 

"Song..." Beel's voice caught her attention and she turns her head and looks up at Beel who was looking down at her with begging eyes, she inhaled sharply through her noise when she saw the hunger and bloodlust within them. She notices now that his cheeks were now red just like her own and she felt him softly kiss the same place he had left his pact mark on her neck and hears him let out a soft whisper that sounded like a desprate plea rather then just begging. 

"Please, let me drink your blood, Song..." He grips her wasit tightly as the scent of her blood enters through his noise. By god, the scent of her blood made his own boil with want and need and damn him if he wasn't going to refuse the urge to want to taste it, but if Song really was too scared to let him taste her blood, then he knew that she was going to have to hold back his urge. Belphie, who noticed how nervous his little angel still was, made her look back up at him again. Grasping her chin by cupping it with his hand. 

"Beel and I are always drinking each other's blood." He said, resting his head against her's as Beel then spoke into her ear next as he rubs her sides. "Up to now, that's been good to us." He said, making Song glance back at Belphie who softly kisses the corner of her lips, making her face burn red as she saw the seventh born's mischevious smile that made Song's heart swirl with excitment and so much emotion that made her think it was going to pound out of her chest. 

"But, if you become one of us, that makes three. And if we all share each other's blood..." He trails off as Beel kisses her neck more, making the girl hold back a squel as she heard him speak against her neck, she could feel his hot breath send shivers down her neck and felt ghoosbumps appear as she hears his next words. "Then it'll be easier to satisfy our hunger, for sure." He whispers, softly kissing Song's neck. The purple haired girl shyly looks at Belphie and saw his smile had widen and felt him softly kiss her head and nuzzle the top of it gently as he whispers his words to her and she felt heart pound against her chest as she hears them sweetly enter to her ear. 

"You're okay with that, right Song?" He asks her, making the girl shiver. 

"I-I..." The girl trails off her words, her mind full of thoughts and emotions swirling around her into a spiral. She closes her single eye and lets in a deep breath before she opens her eye and said her answer. 

"O-Okay, b-but...only b-because....y-you t-two both n-need m-me.....o-okay?" She stutters out, making the two smile brightly at what she said. 

"Song..." She felt Beel nuzzle her head and pepper her cheek in kisses, making the girl yelp in surprise but then she lets out her small giggles as she felt Beel's kisses tickle her cheek. 

"Thank you. It means a lot to know you care about us that much, despite being so scared..." He said, and Belphie kisses her head then pecks her lips, smiling as the girl lets out an adorable giggle. "We're so proud of you, you know that?" He whispered softly and the girl shyly nods her head. She then felt Belphie help her over to his bed and sits down next to her on the left side while Beel goes to the right. "I'm going to drink from the right side of your neck, okay?" He said softly into her right ear, making Song's cheeks burn red and she shyly nods her head as Beel goes and bends his head down and nuzzles her head and kisses her left side of her neck. "I'll drink on her left side then."

Song felt herself let out a shaky sigh, letting out a breath she hadn't realize she was holding as she felt Belphie kiss her right side of her neck and circles it slowly as he stares down at the spot where he left his demon mark on and smiles softly. Both Beel and him have placed their packt marks on her neck, and now they'll be placing their vampire marks on her neck right over their own pacts as well. 

"We love you, Song..." Belphie whispered to her as he gently places his lips over her neck as Beel kisses her cheek and leans down closer to her neck and whispers softly against it as he smiled, Song felt it. "Once your a vampire like us, the three of us can all live together... Forever." He whispers and bites her neck, making Song gasp at the sudden sharp pain she felt on her neck as she felt her own blood being sucked away from her while Belphie chuckled at the adorable expression she made and nuzzles his cheek against hers and whispers into her ear. 

"That's right.... Forever and ever, till death do us part." He whispered before sinking his own fangs into her neck and sucks it. 

Song felt like she was in heaven at that point. She shuts her eyes at first, feeling like she was about to cry, but then, the pain suddenly went away as though it never had exsisted in the first place, and it was replaced with sudden pleasure that made her heart start pounding. 

She loved it. 

The feeling of their fangs, and the way her own burning blood was being sucked into their mouths, it made her heart start to soar up way high up into the sky, it made her feel like she was going to be somewhere even more better than the celestial realm itself. 

Suddenly, she felt the pleasure fade away. She opened her eye which she hadn't realized she hadn't closed. "H-Huh...?" She stutters softly and felt someone nuzzling her head and she looks up. Beel nuzzled her cheek and had a soft smile on his face and was stroking her hair as Belphie was softly sucking the last bits of blood that were coming out of her neck before softly placing a kiss on the side of her. 

She noticed that they both had proud looks and she gets cuddled by them both and felt Belphie softly kiss her head. "You did a good job Song, you stayed completely calm through all of that..." He said tiredly before kissing her head and sighs softly. "Drinking your blood...it tasted so good...and its making me feel tired and sleepy..." He whispers and nuzzled closer to her and wrapped her arms around her. He buried his face into her neck and he instantly fell to sleep, making the girl giggle silently and glances up at Beel and felt him kiss her eye patch, making her blink in surprise and nearly flinch at the contact but relaxes as she felt him nuzzle her head. 

"We're so happy you decided to stay with us Song...thank you." He whispers softly, and the girl slowly nods her head and smiles before she closes her eyes and rests her head on Beel's chest before he turned off the lights. 

Slowly she fell into the land of dreams, her vampire demons curling protectively around her to ensure that no nightmares would befall on their precious angel.