Under the covers, the hormonal siblings can't resist their urges. She, a naughty teen with long, dark hair and a mischievous smile, straddles him, her brother, in their cramped twin bed. He's already rock hard, his cock tenting the blankets. She giggles, pressing her warm, wet pussy against him, grinding slowly. He groans, trying to stay quiet as she reaches under to guide him inside. They move together, their bodies slick with sweat, her tits bouncing, his hands gripping her hips. They're racing against time, knowing they need to leave for school soon, but they can't stop. Not until they've both found their release.