Steve Rogers:
He gets very clingy. And when I mean very, I mean very very clingy.
Tony Stark:
He will stark kissing down your neck.
James Buchanan Barnes:
He will pull you into his body with his metal arm, and slowly bend you over, so your back side is against his crotch and then a slow whimper will escape his lips.
Bruce Banner:
He will call you into the lab, and pull you into his lap.
Clint Barton:
His kisses will get more and more needy.
Thor Odinson:
He doesn't even try to hide the fact that he's got a tent in his pants, and he will just pull you into his lap, and then watch as you lowly moan.
Loki Lauyfeson:
His will push you against the wall, and just start grinding against you and watch as you whimper.
Sam Wilson:
He'll just pull you into the bedroom, and lay you on the bed and have his way with you.
Peter Parker:
He is quite shy about it, but when you slowly start to undress yourself he can't hold himself back and he will wrap a string of web against your chest and pull you into him. As you slowly remove the web with your powers as you kiss him back.