Turn it into a threeway.

Billy lays on top of Steve on the counter, pressing their cocks together and adjusting their position so that both of their asses are presented for Bruce. However, before Bruce makes it over, Steve manages to break through Billy's blue magic. Steve immediately shoves his cock into Billy's hole. Billy tries to leap off of the super soldier cock but he feels Bruce's massive hands push him down by the shoulders until he can feel the skin of Steve's scrotum against his rear.

"That's more like it," grunts Steve.

Billy's hips writhe as he rides Steve. He's content with this, until Bruce's hand pushes him down and a second cock tip threatens his entrance.

"No, you're too big! I can't take both of you--"

Bruce's enormous green organ pushes into Billy's occupied hole. Billy feels his insides spread like Moses parting the Red River. Billy screams in pleasure, immediately cumming all over Steve's pecs and face.

The two huge men fuck the same hole, cocks rubbing against each other inside Billy, until they both erupt orgasms inside of the boy. Billy's stomach inflates with cum, bulging slightly even when the men roughly pull out of him. Cum squirts out of Billy's stretched hole. Billy blushes scarlet red as he can't stop cum from spurting out of his hole. He collapses on top of Steve. He absent-mindedly plays with Steve's pecs while catching his breath.

"What a slut," Steve growls. "Clean yourself up and get dressed. We have to go."

Billy looks up at Steve, "Where are we going?"