Just so you understand whose speaking the bold and italicized quotes are Steve speaking and the italicized only is Tony speaking.

In the Stark tower one night, Steve decided to pleasure Tony. Tony never asked Steve for that because he knew he'd ask when he was ready and he didn't think it's be today so he went on with his normal routine.

"Steve, do you know where my strippers are?" Tony asked.

"Actually, I do!"

At that Tony whipped around to find his eyes lain upon Steve's naked body. He swore his jaw literally just hit the floor. Steve spoke up first,

"Heyy Tony, you like and gestured to all of himself, "I know I like what I'm seeing."

In case you didn't notice, Tony works in the nude. Of course, that's the reason why Steve was never allowed down there. That is, until now. Steve slowly strutted over making sure his friend was the center of attention. Tony just stared in awe at how willing and ready he was.

"I know this is a bad time to bring this up, but I'm busy." Mumbled Tony.

"I know, busy screaming my name when I get to you." Steve taunted.

And with that, Steve wrestled Tony into a hug from behind. Gently making circular motions on his rear. Tony moaned in delight and Steve knew he hit his sweet spot as he nipped at Tony's ears and shoulder, getting a moan after every bite.

"Steeeeeeeeeve. I'm working. Please. Stop. You're making me hard." He pleaded.

"Tony, sweetheart, you and I both know that this chance will never happen again. At least for a while. Come on, babe I'll make sure it's enjoyable." He cried.

Reluctantly Tony agreed thinking "What the hell? Why not? It's not like this happens every day. Plus, he could do it while I'm working. Unless he wants all my attention."

"Okay, fine, I agree and because of you I'm incredibly horny. So c'mon, your choice... here or the bedroom?"

"Here. Definitely here."

"What a naughty little soldier."

Starting back with the circular motions, Steve gently traced the outlines of Tony's hips down to his inner thighs making little figure eights while getting closer and closer to his already hard cock. Tony moved with the motion trying his hardest not to give himself up right then and there.

"Steve, can you stop teasing me? I can't take it anymore and I might not make it any further."

"Sure"

Steve lightly traced his fingers along Tony's chest before he walked away to the tool kit. After rummaging around for a bit, he finally found what he was searching for.

"I got the lube" he sung and pranced back to his lover.

"Tony, which position would you prefer to be?"

Tony swiftly turned around to face Steve and snatched the lube out of his hands.

"I would like to lube you up and get you prepared and slick to enter me."

He grabbed Steve's erect cock and squeezed a shitload of lube on it then proceeding to do the same to his entrance.

"Steve, would you be a doll and prepare me for your very large friend?"

Steve slowly entered one finger into Tony making him gasp at the unfamiliar object entering him but after a while of pumping in and out he slowly entered another and another getting Tony loose enough for it to be bearable at the least. With the first three of Steve's fingers gone it left Tony aching for more, something bigger to fill its place. Just as he thought that Steve slowly made his way to his entrance. Tony thought it would be funny so he said, "You may enter."

Starting at a painfully slow pace for Tony, Steve had an idea of what he was doing but didn't know what pace Tony liked so he kept at a pace that was comfortable for himself. After about 15 minutes or so of a deathly slow pace, Steve started speeding up, very rapidly at that. Tony's moans grew louder and louder, so loud that people in all of Manhattan could hear him, if the Stark Tower wasn't sound proof.

"Jarvis, pooh, curtains..."

The lab got very dark and Jarvis knew exactly what was next so he dimmed the lights in the lab. What a clever AI.

Steve persisted with his rapid motions while Tony pleasured himself. Tony could feel Steve tensing up and immediately felt the same way. Steve couldn't hold it in any longer and exploded his load into Tony, who followed right after, all over the suit he was working on. Tony and Steve collapsed next to the suit and Jarvis floated in a blanket. With Steve spooning Tony, they fell into a deep slumber, something they've needed for quite some time.