Sam Is A Little Jealous
"You fuck him?" Sam growled, his hands raking through Dean’s hair. He ripped back, exposing Dean’s throat. His mouth found the warm flesh of Dean’s neck and left a mark.
Dean groaned, “It was your body-“
"I’m going to kill Gary," Sam growled and Dean decided against explaining to Sam that he had barely licked his dick when Gary pretty much lost it.
And then fucked a dominatrix. In Sam’s body.
Dean kept that to himself as Sam more or less ripped his clothes off.
"Dean," he breathed, pushing Dean back on the bed. He kept breathing his name like a prayer as he moved over Dean’s body, his lips worked little marks in every sensitive spot on the elder and Dean? He just lay there, falling apart under Sam’s mouth, under his jealousy and love and everything that was Sam.
Dean came, his dick buried in Sam who, over him, mouth agape, completely blissed out, was the best thing Dean could ever imagine and all he’d ever need.