A/N: Sexual harassment, jealousy, possessive/protective behavior (enjoyed by both parties), rough sex, barebacking (always use a condom kids)

Galas were, by far, the most mind-numbingly boring events to ever exist, and Tony wasn't even here to buffer this time. He and Jarvis had gone to Tokyo the previous night for a business meeting, which, to be fair, was probably just as boring as this gala, maybe. Steve had been whisked away by a military hotshot almost as soon as they walked through the door, and Bruce had to leave lest the stress get to him. It was bad enough he was in a stiff black suit (that made him look way too much like a government agent despite the yellow tie he was sporting) and surrounded by people, but the evil eye from army officials was where he drew the line. At least Steve seemed to understand when he went off on his own; he caught the look of sympathy as he made his way over to the bar.

Drinking wasn't very common during these types of events, so the area was blessedly uncrowded, which was exactly what Bruce was hoping for. He flagged down the bartender and ordered a glass of lemon water, struggling not to pull out his phone and text Tony. Pepper would have his hide if he distracted Tony from work again. He didn't have to like it though.

The bartender came with his drink a few minutes later, sliding it in front of him and saying, "It's been paid for," when Bruce went to get his wallet. The doctor bemusedly stared at him. "I didn't know the beverages were complimentary," he half-asked, glancing around the room to see if there were any waiters going around with drinks. There weren't.

The bartender smirked slightly and nodded over to his right. "They aren't, the gentleman over there is treating," he explained before leaving the scientist to stare after him. Thinking it was Steve, of course it was, it had to be, he smiled and looked down the bar, only to stop short when he realized it wasn't his super soldier boyfriend. The man was up and walking over before Bruce could lose the smile on his face. "Hey there," the man greeted confidently as he slid into the seat beside Bruce, a little too close for comfort. The doctor's smile turned uncomfortable, but the man either didn't notice or didn't care.

"Um, h-hello," he stuttered quietly, looking straight ahead and sipping his lemon water, hoping this stranger would take the hint that he wasn't interested. He nearly growled when he felt a hand on his back. Damn the seats for being nothing but stools. If he wasn't so determined to avoiding making a scene, Bruce would have thrown the stranger out of his seat for touching him so intimately.

The man, whose scent was a rather unpleasant detergent smell, leaned in closer and mentioned, "You don't look like you're having much fun here. How about you let me take you out on the town? It'll be much more entertaining than hanging around with these stiffs all night."

Bruce frowned, eyes bleeding green in anger. "I'm taken at the moment, so I'm going to have to decline," he replied stiffly, forcing himself to sound at least mostly civil. That civility went right out the window as soon as his 'admirer' snorted derisively.

"Sure you are. You'd have to have a pretty horrible boyfriend if he left you alone in a place like this," he argued, moving his hand lower, "Come on. I know you want it."

"Is there a problem here?"

Bruce felt a rush of relief at the sound of Steve's voice, angry as is was, not that anyone who didn't know him would notice the subtle undertones of fury. His harasser immediately withdrew his hands and shook his head. "Not at all! I was just buying my friend here a drink," he lied, voice rising in pitch more than enough for Steve to tell he was full of shit.

Steve glowered at him. "I think you need to leave," he growled, and the man scurried off hurriedly, leaving the two super-humans alone. Bruce got concerned when the scowl didn't drop from the blond's face. "Steve?" he questioned, "Are you okay?" Steve grunted, but didn't deign to reply. The doctor felt his stomach drop. Steve didn't think he was actually going to cheat, did he?

Steve, still frowning angrily, pulled out his phone and texted Happy. "We're going now," he told Bruce in a no-nonsense tone, "Happy's driving us back to the tower." He wrapped a hand around Bruce's arm and led him out of the building, thankfully not gripping very hard, which the brunet found odd since Steve still looked upset. At what, he wasn't really sure.

On the drive back to their home, Bruce tried to bring up what happened, but the way Steve's lips curled downward made him rethink it, and so the trip was uncomfortably quiet. Bruce almost fell out of the car when Happy dropped them off in the garage, mind on what he could possibly say to fix whatever Steve was angry about rather than the ground he was walking on to get to the elevator. He finally gathered up the courage to say something, had it all planned out a few seconds after the elevator doors closed. However, as soon as he went to open his mouth he was being pushed against the wall and found his mouth being taken over by an aggressive tongue. "Mmph!?"

Steve pulled back just slightly at the muffled shout he gave, just enough to speak. "Do you have any idea how angry it makes me when people touch you like that?" he growled loudly, grabbing Bruce's hips roughly and pinning him with his body, "You're mine, mine and Tony's and Jarvis'. No one else gets to touch you." The physicist shivered at the pure possessiveness in his voice, then moaned when the super soldier bit roughly at his neck, but the haze of lust only lasted until he remembered that they were in a public elevator. "St-Steve, someone could come in here!" he protested weakly.

Steve just hefted him up and forced him to wrap his legs around his waist. "Let them," he retorted, claiming the scientist's lips again. All Bruce's protests die in his throat as his lover pressed their hips together and held him up with hands under his ass.

It was only when Steve lowered him to start unbuttoning his suit that Bruce found his voice again. "Really, honey, n-not into exhibitionism," he panted, grabbing the soldier's wrists to stop them from going after his dress shirt too. Steve grunted, but listened and backed off, hands shifting to Bruce's hips while he tried not to look disappointed. Bruce took pity on him and reached out to hit the emergency stop. Jarvis was smart enough not to send anyone to investigate.

Bruce grinned at Steve, cheeks flushed pink with both arousal and mild embarrassment. "Okay, now you can stake your claim on me," he invited. The taller man was on him in an instant, pressing him into the metal walls and pulling him by the tie into a rough kiss. This time Bruce was more than willing to return it. He undid Steve's tie and slid his hands up the front of his suit jacket as Steve tugged the doctor's slacks down to his knees, then immediately did the same to his underwear. Bruce blinked owlishly when he realized that Steve intended to go all the way with him in the elevator. "I hope you have some lube on you," he mumbled, pulling off the super soldier's jacket and dropping it to the floor.

"Of course," Steve panted, then said, "You look really good in a suit," by way of explanation. With one hand, he spun Bruce around pinned him face first to the wall, forcing all the air out of the scientist in a sudden, "Oomph!"

The sight of his suited back reminded Steve too much of how Bruce looked when that man was trying to get into bed with his physicist. He could almost see where the bastard's palm had been, and the thought made jealously flare hot in his chest. Steve unzipped his pants and freed his hardening erection before grinding against the cheek of Bruce's ass and lifting three fingers to his lips. "Suck them," he growled, smearing precum onto the brunet's skin as he ground his hips against him, "Get them wet."

Bruce didn't understand why Steve had become so aggressive again, but he couldn't say he minded. It was actually really hot. He sucked the insistent digits into his mouth and laved at them, getting as much saliva on them as he could, knowing they'd need to save the actual lube for Steve's cock. They were dripping by the time they were pulled from his mouth, due in part to the mouthwatering that started when Steve reached around and started pumping him in time with his grinding movements.

Bruce shuddered when the first finger breached him, hands curling into fists against the metal wall. "This is mine," Steve growled, squeezing the doctor's ass roughly as he slipped another finger into him. Bruce could only moan and nod as Steve scissored them, forcing himself not to tense up. He could tell Steve was getting impatient with waiting to fuck him, and the last thing he wanted was to get hurt because he wasn't stretched enough. Steve would never forgive himself if he hurt a lover in that way when they didn't ask for it.

"Another," Bruce whimpered, "I can take it." It would burn a little, but he could take it.

"You sure?"

"My ass is yours, right?" Bruce panted, sending a challenging smirk over his shoulder, "Then prove it." Steve's eyes dilated and his growl sounded almost feral. He pressed the third in finger mercilessly, the slight burn pulling a whine out of Bruce. The super soldier took his time stretching him out, watching the heated flesh clench around his fingers for much longer than necessary, until Bruce had no choice but to shout, "Dammit, Steve, fuck me!" The blond chuckled and pulled both his hands away from Bruce's body to grab the lube from his back pocket and tear it open. Condoms were something they didn't really use with each other, since neither of them could contract diseases and both of them preferred the feeling of bare skin when they had sex. It was a damn good thing, too, because he doubted either of them could have waited long enough to go get one.

Bruce heard the wet sound of his lover slicking his cock as he readjusted his stance. He spread his legs farther apart and braced his forearms on the wall of the elevator, tilting his hips back provocatively. "Please Steve, claim me," he begged, sighing in relief when a muscular arm curled around his waist and pulled him back against the burning heat of Steve's cock.

"Mine," the Captain growled possessively, and then he was biting down on Bruce's neck as he slid right into the doctor's body. Both of their moans echoed loudly in the small space, Bruce's higher and more desperate, Steve's low and animalistic. The large blond sucked viciously on his neck as he began fucking into him in slow, hard movements. Bruce could feel the huge bruise forming under Steve's teeth. His head dropped forward against the wall as his lover started moving faster and went to create even more marks on his skin. Beyond rush of pleasure flooding his body each time Steve slammed into his prostate, something Steve was very familiar with by now, he could hear the blond muttering "Mine" under his breath in such a way that Bruce thought he might actually be unaware he was saying it at all.

That made his body burn even hotter. "Oh god," he moaned, feeling his balls tighten up, "Steve! St-Steve, I'm gonna cum. C'mon, c'mon, c'mon, fuck me like you mean it!" With a wild snarl, the super soldier roughy grabbed his hips and gave it everything he had, the world around them being filled with the slick sound of skin slapping skin and strangled sounds of pleasure that couldn't quite make it out of their owner's throats. Bruce came seconds after Steve lost himself to his desires, riding out the orgasm from the roughest sex they'd ever had as the blond snapped his hips forward a dozen more times before coming deep inside the scientist.

He ground his cock into Bruce a few more times before finally stilling, pressing against Bruce's back and admiring the multitude of angry bruises littering his neck above the collar of his rumpled suit where everyone would see them. "You're mine," he growled one last time, and Bruce turned his head to pull him into a soft kiss. "Yeah," he agreed, smiling softly, "All yours."

A/N: Send a prompt to drbannerakahulk on tumblr if want more smutty goodness. I promise there are very few things I won't write.