Dean didn't think, eyes catching sight of the exposed line of Sam's neck, quickly nuzzling into it, pressing his body flush against Sam. His groin had fully awoken now, his mini-Dean fully awake and ready to go. He needed it. He reached up, hands trying to feel everything all at once. Sam let out a surprised yell, trying to back away. "Dean!" Sam's yell fell on deaf ears as his brother began to rub against him, lips moving over the skin of his neck. "Dean, what the hell!"