Mercy

by RaindropsOnDeadRoses

Instagram one-shot from my wincest page, @codependencest. Dean complies like a good little soldier, all traces of their previous conversation forgotten. If he's being honest with himself, he's always been right where he is now. At the mercy of his baby boy.

"Jesus fucking Christ, big brother, yeah. Harder."

Despite the situation, Dean chuckles, picking up his pace. "Always have been such a power bottom, Sammy."

Sam rolls his eyes and breathlessly retorts, "Oh, shut the fuck up. I learned that somewhere, y'know."

Dean looks at him incredulously, eyebrows shooting up, a bead of swear forming at his hairline. "What, me? You won't let me be a power bottom, Sam. You tell me to shut up and take what you give me every time I try."

Sam smirks, pushing his hips up to match Dean's rhythm and moaning when Dean comes close to his prostate. "Like you don't love it."

"I don't," Dean lies, slamming into Sam's prostate intentionally this time.

Sam cries out, taking hold of Dean's hips and forcing them to grind down harder. "God, big brother. Make me fucking come."

Dean complies like a good little soldier, all traces of their previous conversation forgotten. If he's being honest with himself, he's always been right where he is now. At the mercy of his baby boy.