More mild smut towards the end!

********

Thankfully, Seonghwa and Hongjoong were not roommates. They shared a suite that was connected by a door separating their rooms, but both of them had their own beds. Seonghwa was relieved at hearing this, even if he could not suppress his curiosity towards the other man's scent. His blockers surely would have worn off during the night, and Seonghwa would have been able to get a whiff of him, had he been in the same room.

It made perfect sense for Hongjoong to block it as an unmated omega. His scent could get him a lot of unwanted attention that would pose a risk during his missions. But now, Seonghwa wanted to know what his distinct note was. Was it related to nature? Or to food? Maybe he smelled like some sort of flower, too. Imagining Hongjoong's sweet scent wafting after his savage self made Seonghwa oddly giddy.

But maybe he wouldn't even smell sweet. Maybe his unusual self smelled weird enough to be confused as a beta too.

Seonghwa was way too busy thinking about the other man while he was in the shower. He blamed it entirely on the blowjob earlier. The ghostly feel of Hongjoong's lips on his skin was still haunting him no matter how well he washed his body. In the end, he physically had to keep himself from imagining it too much.

Seonghwa wasn't sure if he wanted to talk about the topic when he stepped out of the foggy bathroom in only a bathrobe that reached until his knees.

The bathroom connected to Hongjoong's room, so Seonghwa had to cross it to get into his own. When he found Hongjoong on his bed with a matching white robe to Seonghwa's and his arm lazily thrown over his eyes, Seonghwa hesitated.

There was no use in asking Hongjoong why. His motives had been quite clear. Rather, the question was why he had such motives. He gained nothing from helping Seonghwa.

Seonghwa stood there and stared long enough for Hongjoong to grow impatient with him.

"What is it? Something you need?"

They had eaten in relative silence, and then Hongjoong had taken a shower first before leaving Seonghwa to it. Normally, Seonghwa would now go and lock himself in his room to get some rest. Yet, he couldn't bring himself to move just yet.

His eyes travelled to the bag on Hongjoong's nightstand. He could see the bag he had seen Hongjoong put the piece of the amulet in.

Seonghwa pulled the towel he had been drying his hair with off his head to lay it around his neck comfortably.

"Thanks for... Helping me out earlier. That was unexpectedly nice of you."

An amused smirk painted Hongjoong's lips where his face was not hidden by his arm.

"You're welcome. I wanted to taste you for a long time. Maybe I took advantage of your situation just a little."

That was surprising. Seonghwa had survived through his fair share of thirsting after his enemy too - which was a given, considering their situation and Hongjoong's looks - but he hadn't expected Hongjoong's advances to be more than just flirting either.

Moreover, he had interpreted even that flirting as a means to catch Seonghwa off guard so far.

"You did?" Seonghwa raised a dark brow at him when Hongjoong shifted his arm up further to look at him. His dark eyes seemed disbelieving.

"Of course. How often do I get an aroused and flushed Seonghwa Park trembling for me? I know enough people who would die to be in my position earlier," he smirked attractively, making Seonghwa's heart skip a beat.

This was dangerous; Hongjoong was dangerous. He laid sprawled out here on this big bed with the robe wrapped loosely around him, showing off most of his chest and a smooth thigh. Seonghwa had to keep himself from staring at the few tattoos he could spot on the man's skin too intently.

Seonghwa laughed nervously.

They had never been like this. There had never been a moment in which they had been alone, vulnerable like this, and without weapons strapped to their bodies. They were used to meeting in dusty tombs that were lined with dead people. Not in big hotel rooms that had soft orange light shining down on them and inviting beds that had enough space for both of them.

Seonghwa was afraid he might do something stupid. He had to remind himself that Hongjoong had only been interested in that moment, only wanted to take advantage of Seonghwa's weakness. Seonghwa had no logical explanation of why he wanted the other man to wrap his legs around his hips.

"Was it what you expected?" Seonghwa stepped up to the bed slowly, trying to keep his face schooled in a neutral and curious expression.

If he managed to distract Hongjoong, he might be able to steal the artefact from him. He just had to make the man fall for his trap. He could use their weird sexual tension to his

"I didn't get to taste your knot. You don't want me to make assumptions based on missing information, right?" His voice was challenging, its tired edge making it sound husky and inviting. Seonghwa was not sure if this was going to be an advance.

Seonghwa kept quiet, waiting for Hongjoong to speak again. He was not going to risk this perfect moment to steal his amulet piece back by listening to his dick. However, some uncertainty must have shown on his face, for Hongjoong quickly waved his hand.

"Don't worry, I won't jump you. I'm aware of us being enemies still. Just make sure to get home safely and spend your rut with your pack. I'll give you a call when we've found the next piece." With that, he closed his eyes again to comfortably and settled back against his pillows.

Curious, Seonghwa cocked his head.

"If your words are true and you are indeed fantasizing about me... As an enemy, wouldn't you take advantage of that?"

Hongjoong cracked one of his eyes back open, looking Seonghwa up and down. His hair was still wet, and all spray colour had washed out, leaving it to fan around him like a red halo.

"I'm no rapist, no matter how annoying my rival is. And I sure hope you aren't either."

Seonghwa mulled the words over in his head. Right, it was fair for Hongjoong to think like this. Even when he, as a fertile omega, suffered more under possible rape than Seonghwa ever could. If he went into heat, nobody around him would be able to easily ignore him, since most of their enemies were usually alphas. Their drive to breed omegas in heat was too animalistic to withstand mostly.

Well,  but anybody could if they tried. Seonghwa knew he could. Because Seonghwa had an omega, who was precious to him, whom he cared for. 

"I'm not."

"Good. Now tell me, Seonghwa, what to do you think about getting knotted?" Hongjoong pushed himself up on his arms, grinning broadly. Red locks of hair fell into his eyes.

Seonghwa blinked before crossing his arms in front of his chest slowly.

"Getting knotted? I'm an alpha, I have no opinion on this. I don't think it's... possible?"

Hongjoong shook his head with a disappointed noise, sliding over the bed closer to Seonghwa. He threw his legs over the edge casually and reached out to pull Seonghwa in by his thighs before he could react. Surprised, he stepped closer, allowing Hongjoong to nuzzle against his hip. Seonghwa's heart rate picked up at the man's closeness, his alpha very much satisfied with standing above the other man again.

"Ah, the good, conservative boy. Have you never once wondered about it? How it would feel to have somebody stuff you full of their cum? To be locked up for at least half an hour to their body? Never?"

Pondering, Seonghwa looked from the bag on the nightstand back to Hongjoong, who so obviously desired him.

And Seonghwa did, too. He didn't like the guy, and he would deny looking at him always, but it was not as if he was not attractive. Seonghwa was far too curious to break his shell and see what was underneath his tough exterior to just overlook the tension between them.

And here Hongjoong was, offering himself. And asking weird questions.

"No, why would I? Don't get me wrong, my pack is made of males, I get the thought, but as an alpha, why would I want that? It's far less pleasurable for me than a beta or omega, not so say painful."

"So I take it you've let other people fuck you, but never knot you?" Hongjoong's fingers deftly undid the belt holding Seonghwa's robe closed, sliding it open. His fingers immediately skimmed over the naked skin of Seonghwa's hips, mapping his body out.

It was ridiculous. Them being here, dead exhausted, and having this conversation. Hongjoong mouthing over Seonghwa's hipbone was ridiculous, and it was even more ridiculous how Seonghwa dropped his hand to the other man's nape, feeling up his short hair.

"Right... The other alpha I have at home also never brought it up, anyway." Seonghwa felt his body heat up at the sight of Hongjoong mouthing up the side of his limb length, a low hum escaping his throat.

"Yet, you would look so good like that. Fucked out and twitching around a knot. Imagine yourself in the role of your omega after your pack helped him through the first day of his heat," Hongjoong murmured against his skin, basking in Seonghwa's undeniably delicious scent. Seonghwa nearly cooed at him when he brought his hands up to help Seonghwa get fully hard, not managing to wrap his fingers all the way around Seonghwa.

"What an odd thing to say, as an omega. Do you fantasize about knotting someone?" Seonghwa ran his fingers over Hongjoong's scent gland, making the other man shiver in his hold.

"Maybe I do." Hongjoong stopped kissing around the base where Seonghwa's knot would soon form and instead moved up to the man's tip, taking it in his warm mouth.

Seonghwa sighed when Hongjoong sunk deeper right away and used his dexterous tongue to make Seonghwa's legs weak within a few minutes. Hongjoong certainly knew what he was doing, leaving his throat open and inviting for Seonghwa to again slightly thrust his hips down it.

"Are you sure you can take this? I'm not sure if your throat is up for that." Seonghwa knew that Yeosang could take him. But even as an omega, he had struggled. His mouth was not designed to take a know. Neither was Hongjoong's. As a pack alpha, Seonghwa immediately grew worried.

Hongjoong, however, just glared at him defiantly. He didn't mind Seonghwa any further then, just opening up wider as he tried to close his mouth around Seonghwa's considerably big knot. He had to stretch his lips obscenely wide as he decided to take the hard bulb, his throat fluttering around Seonghwa's tip which was far down his throat.

With curses slipping from Seonghwa's lips, and fresh sweat appearing on his forehead, he reached around Hongjoong's neck, feeling it bulge around him.

"Hnngh- Hongjoong, stop, wait-" It was too much. Tears clouded the man's stubborn eyes as he failed at breathing and taking Seonghwa at the same time. He seemed incredibly frustrated, and by the looks of it, he would hurt himself trying to make up for it.

Seonghwa had to physically push him further away, his chest rising and falling rapidly with every breath he took.

Hongjoong let him, not trying anymore, but still stubbornly sucking Seonghwa as if it was his last day on earth. He made Seonghwa far too weak, his scent filling the air so much he nearly choked on it himself. He wanted to reach down and help Hongjoong out also, but the heat soon became too much to bear.

The itchiness had taken over completely, making Seonghwa restless and his movements erratic. The need to push Hongjoong down and take him in any way possible overpowered him quickly, exiling most other thoughts out of his head.

He had finally gone into rut.

Mindful of his roughness, he tried to hold back. He dug his fingers into Hongjoong's shoulders to keep himself from grabbing his head forcefully. He knew that his thrusts were just a tad too rough for a throat to take, but Hongjoong didn't mind him. He took it well, and warmed Seonghwa's quickly swelling knot with his hands, too. He gave his best, and Seonghwa appreciated it.

When he finally came, his knot once again brushed against Hongjoong's lips, pulsing against them as he filled Hongjoong's throat with hot come.

This time, it was too much for him. He had to pull off about halfway through Seonghwa's prolonged orgasm to cough, getting his face and neck full of white stickiness.

It was incredibly nasty, and typically Seonghwa would have rushed to get something to clean up, but now, he was just futilely grabbing at Hongjoong again.

However, the other man escaped his grasp. He hurried to scramble over the bed, grabbing the bag. His voice was rough and sounded sore as he spoke.

"Nope. As I said, your pack. From now on, I don't have enough consent from you. I'm gonna use the other room, as I can lock that one. Good night, Seonghwa." With that, he fled, leaving Seonghwa to spent the night overheated and with a pillow between his legs.

******

I can guess some of you are confused about the whole knotting thing
For those people; Only Alphas have a knot and it is used to keep the semen inside their partners after sex to ensure their pregnancy. Meaning that until the knot has deflated, no movement is possible to avoid breaking something because it's really big and absolutely can't get pulled out without ripping the person open. So using it orally is a very stupid idea because you might suffocate the person until it's safe to remove. Also, as alphas don't produce their own slick - as opposed to omegas and betas - taking it would be a huge hassle because of the prep.
So the basic rules are to only knot betas and omegas and also not to knot mouths because no.