Derek kept up the soft motion as Stiles burrowed against him, and couldn't suppress his smile. He knew the boy could be like this, responsive and so eager for it, for the simple joy of feeling good. No games. No hidden agendas.
"Like that?" he murmured. "I don't have any lube here...but maybe this is enough for now. Just a fraction of how good you're going to feel with my fingers inside you, and my cock."