Numerous Body Swap Stories

Cap's New Suit by thetfchangingroom

Every punch he took, every shot he fired, everything was aimed at Steve Rogers. Brock Rumlow (or as people were now calling him "Crossbones") was obsessed with destroying Captain America once and for all.
So when he caught wind of a special serum that could turn the user into whatever they desired most, Rumlow was eager to get a taste. After breaking into a top secret government facility with his band of hired guns, he managed to nab a small injection tube full of what was then being called "Liquid Z." It was all he needed, he thought, to take down the man who'd exposed Hyrda and scarred his face.
He locked himself up in his room, an underground bunker fortified with steel (he wasn't exactly sure what Liquid Z would do to him specifically), and injected himself with the glowing green liquid. All the while, his thoughts were on Cap. On his body, beaten and bruised, under the rubber of his boot. He imagined stripping him naked, exposing him, humiliating him for what he'd done. All he could think of was smothering Steve Rogers, and that's when the changes started.
Rumlow felt his stomach turn. He could feel his organs changing and rearranging themselves. What was he becoming? Some kind of beast? The thought excited him, and just as it did, he dropped to his knees.
He felt his whole body go numb. He felt lighter as his breathing slowed and his vision started to blur. Unexpectedly, Brock felt himself get aroused at the feeling. the only think he could feel was his crotch, which radiated with heat as the rest of him seemed to vanish into thin air.
Suddenly, he was no longer in his bunker. He was in an apartment, tidy and well dressed. The buzzing of the cars outside sounded a lot like New York. Had the serum transported him to Steve Roger's apartment?
The thought excited him. But just as the excitement came, if vanished, replaced with sudden terror. Rumlow had looked down at his body... it was turning blue!
What was going on?? He thought, feeling his new skin. It was rough and elastic. Underneath, he felt his bones expand and hollow out like armor. It was as if he was wearing some kind of suit. Or becoming one...
"UGHHH," Rumlow growled. The heat from his dick grew even stronger, and spread throughout his whole body. Every inch of him was so sensitive, so easily aroused, that even just kneeling down on the hard wood floor made him inches away from cumin. But he couldn't cum. He could only kneel and writhe in sweet ecstasy as his body continued to change:
His hands vanished into two holes at the ends of his arms. His chest expanded out to fit Roger's stature and his entire being went hollow. Just as he began to see the image of a star appear on his chest, Rumlow felt his face sink in.
"No!" he cried out with his last breath, "this is not what I wanted! This is not-" But his mouth was gone. His head had disappeared along with his hands, and what was left of him lay crumpled on the floor.
He could still see the room, though not through his eyes. He couldn't move, only watch as the door to the bathroom creaked open and out walked Steve Rogers. Stark naked, his massive muscles still dripping with water and sweat from a nice hot shower.
"Huh," he said to himself, looking down at his suit, "don't remember leaving that there"
As Rogers walked towards him, dick swinging back and forth, Rumlow felt tremendous fury. How was he supposed to destroy Rogers as a suit? But it didn't matter, because as soon as Steve's hands touched Rumlow's roughbalue skin, as soon as he felt the warmth of the man's body fill his fibers, his fury turned to pure longing. He needed to be worn. He needed to be used.
One leg after another, Captain America slipped into his iconic outfit, his thick legs brushing up against the fabric and sending Rumlow into a state pf perpetual orgasm. As his mountain pecs filled out Brock's, his skin caressing the inner armor, he realized this is all he ever truly wanted. And as his cock pressed up against Rulmow's crotch. he lost himself entirely in an explosion of unending pleasure.
As Rogers picked up his shield and left his apartment to go join the other Avengers, he felt a keen sense that some justice has been done. He also felt strangely horny, as his suit seemed to be warmer, hugging comfortably around his adonis physique. A bit of precum leaked from his dick and into the fabric, and he smiled thinking about all the fun, sexy times he'd had with that outfit, and all the fun that was to come.