Steve can feel Bucky's release in the way his cock twitches in Steve's hand, but he can also feel the tensing of Bucky's body around him. It leaves Steve growling, loud and wild as he pounds into Bucky hard a few more times until his knot pushes through and Bucky's body traps it. From there, it takes very little motion to push him over the edge, the rough and shallow thrusts that Bucky's body allows him are more than enough to get him there.

He drapes his body over Bucky's back, hips rocking against Bucky as Steve spills his seed inside of him. Bucky's hair is in his way, but he shoves at the strands until he can get his mouth on Bucky's neck, teen right against his scent gland. There's no hesitation when he bites down, teeth pressing into the flesh like the lack of marks there is an affront, because Bucky is already his and this bonding mark is just a formality now.

Through it all, his hips keep moving. He almost hopes it's too much for Bucky like this. The idea of pushing him too far in his pleasure is an appealing one and the sticky, sweet smell of his heat is all around them now. It won't be long before he'll have to do this again. Bucky's going to need his care through it all. Maybe Steve won't even give him a chance to rest.