Alone in the house, you're startled by your step cousin's sudden appearance. She's been admiring you from afar, and as she sees you in a private moment, she can't resist the urge to approach. She tentatively reaches out, wrapping her small hand around your growing bulge. You're taken aback, but her touch feels too good to stop. She lowers herself, taking your cock into her warm, inexperienced mouth, eager to please.