Sam looking at Dean, his mouth watering just thinking about what it would be like to suck him off, feel his dick in his mouth, taste it, give him road-head.
Imagining Dean caressing his back, pushing down his jeans at the back, fingers stroking into the cleft to press against the hole there before the hand travels back up to clutch at his shirt.
Sam licks his lips. Feels hungry for it.
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