Dean denied any blame for it starting, only for him letting it carry it on. He let it get this far and he shouldn't have, he shouldn't have kept kissing him and he shouldn't have let Sam push him down on that bed in the cabin, and he shouldn't be letting Sam do what he was doing now, but he wanted it, so badly he was sure he'd go crazy without it.
"Soon, then," he answered lightly, and he kissed Sam just softly on his lips, but then Sam's fingers were gone and Dean watched his brother's arm move as he slicked his cock. Sam's words made Dean shudder a little and he groaned at the mere thought of it.
"God, Sam..." Dean wasn't sure when it happened, but he was becoming addicted to the feeling of Sam's body against his.