The siblings, locked in a battle of wills, find themselves alone in the house. The brother, a towering figure of pent-up desire, corners his sister in the kitchen. She gasps as he presses her against the counter, his hand snaking around to grip her ass. "You've been teasing me all day," he growls, his lips brushing her ear. She moans, her pussy throbbing. "I have not," she lies, her voice breathy. He grinds his hips against her, his hard cock evident. "Liar," he whispers, his hand moving to her breast, squeezing it roughly. She bites her lip, her body aching for more.