Mild Smut ahead
*****

Seonghwa had trouble concentrating.

His rut having set out despite Yeosang going into heat was worrisome enough by itself, but he had no time to go to the doctor's office right now. Even more than that, though, the fact that he was staying hard for a far too elongated time while he was on a mission bothered him.

It was nothing new for his body to react to him fighting. As much as San loved to tease him for it, it was still part of Seonghwa's continuous routine. Today, though, the heat would just not go away, no matter how much he willed it to. His impending rut kept his body excited despite the danger of the situation.

And that was indeed a problem.

Especially, since these yakuza preferred using Jiu-Jitsu on Seonghwa much more than shooting at him. They made the situation much worse.

With sweat dripping down his neck, Seonghwa rose from another man he had just put down. His arousal was straining against his pants, begging for attention even as he brushed his hair back and rolled up his sleeves.

"Hwa, please take a break. You can't go on like this. If they actually trigger you somewhere in there, you're as good as dead. Terada's men won't have mercy on a savage alpha."

Seonghwa grimaced at the implication that those bastards would very much like an omega, however.

For a split second, a flash of worry filled Seonghwa.

What if that ever happened to Hongjoong? What if he ever went into heat during a mission? His scent blockers would not be able to mask his arousal, and he would be far too weak to defend himself.

The thought of a group of hungry alphas having their fun with him made Seonghwa shiver. Quickly, he pushed it aside. He was not here to care for the guy. He was his enemy, no matter his gender.

"No time for a break. I won't let him run off with my artefact again."

Breathing heavily, Seonghwa leaned against the wall for a moment as he tried to regain his senses. He was overheated as if he was running a fever, clearly a side effect of his cycle malfunctioning. The need for release was strong, but he would not allow himself such a distraction. The adrenaline in his veins kept him from finding that kind of freedom anyway.

"Seonghwa. You're leaving me with no other choice."

"Shut up, San. I'll have to turn you on silent if this goes on." Seonghwa pushed himself off the wall to continue making his way down Terada's apartment. He had used the construction scaffold to get over to the other building and found his way in through the rooftop terrace. Now, he just had to find Terada in this massive building while his condition gradually worsened.

San fell quiet while Seonghwa stumbled down the stairs. Right now, he was looking for some sort of central control room so that he could check the security cameras for Terada's current location.

Seonghwa nearly ran into another enemy as he tripped over his own boots. He shot the man down dirtily, hitting his shoulder instead of his head. Before the man could scream too much, he released him from his pain.

Seonghwa had finally found what he had been searching for but it was suspiciously quiet inside.

Careful, he opened the door and peeked in before going.

There were some bodies already on the ground unmoving, and traces of fighting showed a destructive path through the room. There were a lot of single cubicles with computers inside, and a meeting room with the most important controls on a gallery in the back.

Seonghwa moved to it slowly, having to balance himself on the walls when his legs nearly gave out underneath him. His sight was wavering to the point of him getting irritated.

It was not that dramatic, what was his body doing?

Blindly, Seonghwa reached out for the next edge only to miss it by a good thirty centimetres.

Nobody saw that.

With a surprised yelp, Seonghwa fell forward. He tried to hold onto something, but for a long, terrifying second, he found nothing.

Then, however, another body stepped into his open arms, taking his weight effortlessly.

With a groan, Seonghwa tried to pull back as he was being pulled up, expecting a knee to his stomach or a weapon to his head.

However, instead of that, he just received a cool hand on his forehead.

"Are you running a fever? I noticed you looking kind of pale today, but I didn't think it was to the point of you turning sick. Didn't you take a break after Peru?"

Seonghwa gave an inward sigh. His head was still very much awake, and able to recognise that voice easily, thank you very much.

But then again, he didn't rest. He should have listened to San and come home to see a doctor before going.

Hongjoong carefully cradled Seonghwa in his arms as he checked his temperature once again with his own forehead.

"It's not a fever. What are you doing stumbling around like a foal?"

This was a perfect time to tell Hongjoong off. He could just hit the man and lock him somewhere until he found the artefact. And then he would laugh into Hongjoong's face for being too slow again.

But then again, Seonghwa really wasn't feeling well.

"Seonghwa, hey. Are you even listening to me?" He sounded ticked off, and sluggishly, Seonghwa tried to find the right controls on his body to pull back from Hongjoong's welcoming form. He looked great with that blood all over his half-unbuttoned shirt.

"I am, calm down. It's not that dramatic. Let's return to being rivals, please." Seonghwa stepped back only to fall over a trash bin behind him. Hongjoong's face looked adorably surprised for a moment before he reached out to catch Seonghwa again. Up close, Seonghwa could see the spray paint on his hair coming off.

However, now, they were pressed far too close together, and there was no way Hongjoong didn't feel it.

"What- You still have this condition? Getting hard from fighting?" Bold, Hongjoong reached down to cup Seonghwa above his pants as if he had to check. Immediately, Seonghwa's scent spiked excitedly. Embarrassed, he hid his face in Hongjoong's neck.

The other man just cooed at him.

"Why, you too scared I'll win to take care of this? Come on, I'll even wait for you, aren't I the nicest?"

"Can't- Rut won't work."

Why was Seonghwa even telling him this? His face was burning from the blood rushing into it rapidly, and he hid even further.

Hongjoong placed a worried hand on Seonghwa's lower back, keeping him upright.

"It won't? Don't you have an omega at home? Then why-"

Seonghwa interrupted him with a whine, feeling much too heated with the man pressing against him.

"I don't know! I'll see a doctor but not before beating you to this." His voice got lost in an uncertain murmur.

Hongjoong disbelievingly chuckled at him. He just breathed in to speak again when suddenly in the distance, voices got loud. It sounded as if a group of men were closing up on them, and they were standing in the middle of the hallway very visible.

Hongjoong swiftly pulled Seonghwa with him into the nearest cubicle. When Seonghwa was standing, the sombre grey walls reached up until his shoulders, protecting his body mostly.

On reflex, he pulled his weapon and pointed it at the door, expecting Hongjoong to do the same.

Surprisingly, the man rather dropped down on his knees, disappearing somewhere beneath.

Confused, Seonghwa blinked down at him, not entirely processing the man tugging at his belt. He opened it with deft fingers, quickly unbuttoning Seonghwa's soft pants too.

By the time Seonghwa understood, Hongjoong was already tugging his length out of his underwear.

"H-Hey, wait! What are you doing right now?!" Seonghwa's grip shook around his weapon.

Hongjoong stared up at him with those intelligent eyes of his, his face nonplussed.

"What does it look like? I'm helping you out. This is the second favour you owe me." With that, he took Seonghwa's tip right between his plush lips, giving it the first taste.

Yelping, Seonghwa reached for his hair to pull him off, only to grab at his gun again with a curse when the enemies suddenly opened the doors. His first shot hit the first intruder right in the chest.

A tremble travelled through his body when Hongjoong gave a low moan at the recoil that shook Seonghwa's form. He desperately wanted to pull the hot mouth off his hardness to focus, but there was no way for him to do that. He had to take down a dozen of yakuza first.

Another shot, another kill.

Hongjoong slowly sunk down on Seonghwa's impressive length with no care in the world for the bloodshed around them. One of his hands was holding onto Seonghwa's tensed thigh to keep him from pulling away, while the other was wrapped around his base, gently heating up his knot. His pointed tongue flicking away at Seonghwa's sensitive spots felt good, way too good.

Physically fighting to keep a cool head, Seonghwa tried to ignore that it was Hongjoong between his legs. He rather focused on shooting alone and didn't mind his hips gently rolling against the omega's face.

He had no idea why Hongjoong was doing this. He was most likely planning a trap again, but Seonghwa didn't have the time to be suspicious. Right now, he had to make sure he wouldn't die with Hongjoong on his knees for him.

He nearly missed the next shot when Hongjoong suddenly decided to take even more of him down his throat. Seonghwa was waiting for him to gag, but it just wouldn't. Far too fast, Hongjoong was sloppily taking all of him to close his lips around Seonghwa's knot.

For the first time, Seonghwa had no more doubts about the man being an omega. He was built to do this.

"Careful," he growled at his fellow grave robber when he felt his long-awaited orgasm approaching quickly. Getting stuck to Hongjoong's face now because the man took him too deep might be the most stupid thing to happen.

Hongjoong just gave an amused hum as a response that made Seonghwa's legs give out way too suddenly.

With a warning call, he stumbled, his knees making contact with the wall of the cubicle. Hongjoong's head roughly collided with the wood too, making Seonghwa wince in apology. Worried, he glanced down after he had found his balance again only to see Hongjoong quickly rip out one of the guns he was wearing on his thighs.

He shot the man who had just appeared right next to them while Seonghwa was distracted.

Surprised by his own carelessness, Seonghwa met Hongjoong's eyes. The man was staring up at him warningly, but Seonghwa got distracted by the sight of his slick and swollen lips stretching around his member. Hongjoong hadn't quite buried his pointy nose in the soft skin of his pubic bone yet, but Seonghwa kind of wanted him to.

When Hongjoong moved to pull off, Seonghwa quickly concentrated again and continued killing. He didn't want to lose this feeling just yet. Hongjoong's mouth was heavenly soft and warm around him.

They fell back in their rhythm of Hongjoong deepthroating him, and Seonghwa gently fucking down his throat while he shot their enemies. Soon, the room had emptied out again due to their incompetence in shooting compared to their martial arts. As soon as the last man went down, Seonghwa dropped his gun on the desk next to them to firmly grab Hongjoong's hair.

"I'm close." He had been too distracted by the fighting to finish earlier, but now his body was keenly aware of how he was standing between Hongjoong's spread legs and had the man's head trapped between the wall and his crotch.

He would be so easy to overpower right now, so easy to restrain and take until he was screaming, but Seonghwa didn't. He was a good citizen, after all, no abusive alpha.

Hongjoong did not move off him still, just slipping back far enough that Seonghwa's knot could expand without hurting him. As much as Seonghwa would love to force it down Hongjoong's throat, he held back.

Instead, he just allowed himself to deliver one last thrust down Hongjoong's pliant throat before feeling his muscles lock up.

Hongjoong patiently took it all, gulping it down like an expert. Seonghwa watched him with another curse on his lips, feeling himself twitch with sensitivity as Hongjoong sucked him clean.

Not a single drop remained on Hongjoong's mouth as he pulled off and licked his lips clean. Neatly, he tucked Seonghwa back into his pants and zipped him up. He left his belt open still as he pushed the taller man back to escape the tight spot.

Seonghwa was still dazed when Hongjoong gave a friendly pat on his chest.

"See you at the tower in twenty."

With that, Hongjoong hopped over the wall of the cubicle and jogged out of the door.

Seonghwa took another minute to catch his breath and collect his thoughts.

Still nineteen left to hunt Hongjoong down.