Derek moaned and let Kristina kiss his cock for a few more moments before he stepped out of his pants, underwear and shoes all at once and kicked them aside. He remembered what he had told her: when he was naked, go back to touching herself, and don't stop until she cums. He wordlessly tapped her head and pointed at his bare legs and feet, knowing that she'd immediately start touching herself again when she realized he was naked. "I don't need your mouth to get hard. Looking at you is plenty. Sit back on the couch while you get yourself off."