Bucky and Bruce woke the next morning to loud screaming and were greeted with the beautiful sight of Tony riding Steve. The engineer was wildly fucking Steve as the blond watched with his arms crossed behind his head. His own hips thrust up to get a deeper angle into Tony's lithe body, hitting his prostate each time, but he never used his hands. Tony's hips had a pair of large hand sized bruises on his hips, the exact spot were Steve had gripped him while fucking him. Bucky's tight grip probably didn't help either.

"You two should jerk off onto Tony, I wanna see him decorated in your cum," Steve said, not looking over at the two, but knowing they were awake. Both Bruce and Bucky's cocks had sprung to life, seeing Tony fuck himself on Steve's thick, long, cock. Both loved when these two put on a show for them, loving how harshly Steve would take Tony, while the engineer would scream and claw at Steve's body.

"That'd be sexy as hell," Bucky said before rolling to his knees, letting the sheet drop as he began working his cock in his fist. Bruce followed Bucky's example with a grin, semi mesmerized by Steve and Tony.

"It is, isn't it?" Bruce asked rhetorically. Both leaned heavily against each other, watching Tony fuck himself on Steve's large, long, cock, while jerking off in tandem.

"Hnn, s-so good," Tony moaned out, his body bouncing harshly, trying to cum. They often watched each other fuck, comfortable to jerk off while watching, wanting to add their own juices. It was then that Bruce and Bucky realized that Tony had his hands tied behind him, preventing him from touching Steve's body. The dark haired engineer was using his powerfully legs and ass to move on Steve's body, fucking himself to the bruise point.

"Harder, Tony," Steve commanded, his face in neutral, though his pleasure was obvious in his eyes.

"Yeah, yeah," Tony moaned out, moving harder on top of Steve, arching slightly as he moved.

"Good job, Tony," Steve said, his own hips thrusting harshly against Tony's ass.

"Need it, need yer seed," Tony moaned out, his eyes glazed with lust, drool dribbling down his chin as he moved. Bucky and Bruce's eyes widened when they realized what was going on. They had been told, early on, that both Steve and Tony had a sort of Dom/Sub relationship, and it suited them well. Neither of the super hero's asked Bruce and Bucky to join that particular fetish, both knowing the two were uncomfortable with it.

"Don't worry, you'll get it," Steve said causally, before he looked over at Bruce and Bucky.

"Does this bother you? What we're doing?" Steve asked, hips rocking up as Tony's rocked down.

"N-not really, just didn't expect it," Bruce said.

"Yes, yes, yes," Tony screamed out as Steve hit his prostate brutally.

"Good boy, Tony. You two aren't comfortable with this aspect, we under stand that, Tony, he just want's to be controlled sometimes. Makes him feel better, quiets his inner demons and such," Steve said.

"Wait, this is why he's gotten better, isn't it? You being dominating with him," Bucky said.

"Pretty much, yeah. We discussed it, and he knows I wont take it farther then what either of us are comfortable with, but it does help quiet his mind," Steve said. Suddenly, the blond moved so Tony was lying on his back, making the engineer gasp. Steve set a brutal pace, fucking the engineer harshly. Tony wailed in pleasure, his head thrashing wildly as Steve pounded in him.

"Cum on his face, he likes it when we do that," Steve moaned out, his hands on either side of Tony's head, holding himself up. Bucky and Bruce nodded, moving so they were surrounding Tony's head while they jerked themselves off to the image of him being fucked. It didn't take long for Bruce to cum, Bucky following a few minutes later, both shooting their seed across Tony's handsome face. Tony screamed, shooting his sticky seed between him and Steve, staining both of their stomachs white. Steve followed a few minutes later, filling Tony up with is boiling seed. The blond super soldier collapsed onto Tony, keeping his cock deep within the engineer.

"God in heaven, that's the hottest thing ever," Bruce said, panting.

"Yeah. Steve, do you have a collar for Tony?" Bucky asked, his own breath coming out in pants.

"Yes, and all three of our names are on it," Steve replied before rolling off.

"Why?" Bruce asked sweetly.

"So people know I'm taken," Tony panted out, a euphoric look on his face. He loved it when he was coved and filled with his lover's seed.

"You have issues, you know that right?" Bucky asked, brow raised.

"Yeah, but at least I'm loved," Tony replied.

"That you are, sweetheart," Steve said with a loving smile. The other's smile back, all loving, all happy and in love.