In Knots (Sam/Dean, E, ~1.2k)
Dean blows his cheeks out on a slow exhale. Squirms in the high-backed, sturdy chair Sam’s put him in. Vinyl sticks to his bare thighs and the steel frame makes him shiver. His cock leaks, strains against the contraption Sam’s tied around his root and between his balls.
“You okay?” Sam rumbles.
“Peachy.”
Sam’s footsteps whisper in a circle. Dean balls his fists in his lap, tense-and-release, tries to will his heart rate down.
Sam’s arms snake around him, breath steams against his ear. “We don’t have to do this. I’m serious. We can stop—”
“I know, I know. Say Montana if I can’t take it.”
“If you don’t like it,” Sam insists.
Being blindfolded deprives Dean of shooting Sam a look. He hopes his contrary head-tilt gets his point across.
Sam kneads his shoulders, jams his thumbs right in the knots and makes Dean hiss. “Try to relax.”
“Says you,” Dean rolls his neck. Sam massages rough as hell but he gets results. “That tension’s all that’s holding me up.”
Sam chuckles. Pets and strokes Dean’s neck and arms. Dean sits still for him. Concentrates on his breathing and Sam’s movements. Bumps of Sam’s knuckles, ridges of his fingerprints. Sam cups his jaws, traces his ears. Runs his fingers through Dean’s hair and mumbles, “You’re doing so good, Dean.”
Sam’s praise slithers down his spine and makes his dick jump.
On AO3
(cw: mentions Sam's rape in 12x02)