Sam grabs Dean’s thighs, stroking them with his thumbs. He looks embarrassed as Sam leans in to lap at his slit, to taste the blood and uterine lining seeping out of him. Dean puts his fist over his mouth and moans as Sam slips his tongue into him, twisting his toes into the sheets as pleasure grows rapidly, white-hot in his core.
Sam sucks hungrily at his clit and moves back down to his entrance to lap up the red stuff starting to dribble down his taint.
Dean grabs his hair and gasps, sucking in a quick breath as Sam slots his tongue inside of him. His thighs squeeze around Sam’s head but that does nothing to deter him. He’s in feeding mode and he won’t stop until he’s licked Dean clean.
His back arches when Sam teases his clit again, he’s practically melting in the hands that hold up his hips. Dean breathes harshly and repeats Sam’s name over and over again as he brings him to orgasm in one of the filthiest ways he would have never imagined before Sam fell off the demon blood wagon. It doesn’t give him powers, not like the real stuff, but the way he feverishly swallows it down, Dean almost thinks it might.