Adam shivered a little at the sound, peeking through lowered lashes to watch Peter's face. He ran the flat of his tongue over his head, then slid his lips lower, taking him in his mouth. His fingers stroked over Peter's inner thighs, then slid higher to cup his balls, rolling them gently in his palm as his index fingers teased behind them. Something familiar, he figured, something the boy would know, and yet different coming from someone who knew more both about Peter and the male anatomy than previous lovers could have, before moving into completely foreign territory. He knew Peter wanted, could tell he was eager to learn, but he still wanted to savour every moment, make him need, make them both need, first.