It was almost too much to bare.

The way he moaned, keened, cried his name with such reckless abandon. His back was arched, head tilted back, arms folded above his head and grasping at the sheets. His eyes were half-lid in pleasure, chest heaving, a sheen to his skin…

Tony worked harder. Thrusting into him, bending forward to press their mouths together in a heated kiss. Tongues worked against each other in the same desperate fashion that his hands worked on his partner's length. He'd never been this close to being undone, so un-composed in sex. So eager to see his partner to their climax, so needy to get to his.

His breath quickened, their impassioned kiss broke, he could feel it coming nearer. The man beneath him screamed in pleasure, and released on their chests. God, he was so close-

Tony Stark woke with a gasp, propping himself upright as he glanced around the room. Again? This was, what? The third time this week? He rubbed his face with his hands and bent his head, peeking through his fingers at the bulge under the blankets. Shit.
Always the same person. But that was the first time they'd been in bed. This bed. He could look over and almost see where he would have been lying…
The time before this, they'd been in the pool. The first time, he'd shamelessly taken him on the couch in the main room. Stripped him bare, felt his body…

His erection made itself known at those thoughts, and a hand snaked down under the blankets to wrap around himself.

God damn, even after he'd had sex with Pepper…

He glanced over to the woman who was sleeping oh so peacefully beside him, and gave himself a long stroke. He'd hoped that getting out some sexual energy before bed would help his situation, but obviously that failed. He stroked himself again, letting his eyes slide shut as he moved the blankets and shifted himself so his legs hung off the edge of the bed.
He tried to imagine Pepper between his thighs, working him with her hands and mouth, ginger head bobbing leisurely… Maybe not Pepper, she'd never liked the idea of giving him oral.
Another stroke.
Any woman, anyone he's had before would work. A brunette, short curls, skilled mouth.
His hand worked faster.
Tongue moving against his head, fingering his balls.
Tony bit back a groan.
Brown eyes lift to look up at him. Eager, but somehow tired. Weary, worn, with suppressed emotion just beneath the surface, forever doomed to be contained and controlled.
Just like that, it was no longer a woman from many flings before, but Bruce Banner.

He tilted his head back and came into his hand with a sigh. It was always the nervous doctor.

He stood after a moment of silence, and walked into the bathroom. Using an elbow to turn on the water he stared into the eyes of his reflection. Why on earth had Banner become the recent victim of his sex dreams? The first time he had felt shame after he'd woken up. But now? Aside from the hint of guilt at dreaming of doing a man while his girlfriend slept next to him, he was pleased.

He put his hands under the faucet and watched the semen wash away.

Unfortunately there was no one to talk to. Steve wouldn't understand, Barton was never around, Natascha would probably laugh, Thor wouldn't want anything to do with the conversation… And he certainly couldn't tell Bruce.

Tony turned off the water and dried his hands halfheartedly on a towel.

He'd deal with this, he supposed, maybe it would go away. Like a phase. Yeah, that was it. His night time fantasies of sexing Banner were just a phase. Maybe more time in the lab, reinforcing the idea that this man was his friend would help him get over it.

He climbed back into bed, pulling the blankets up and over his shoulders. A final thought entered his mind as he shut his eyes and waited for sleep to claim him.

Maybe he didn't want to get over it…