In a steamy bathroom, siblings, bored and horny, find solace in the shower. The sister, fresh from a workout, steps in, washing herself sensually. Her brother, overhearing her soft moans, enters, startling her. They argue, but the tension's palpable. She's wet, not just from the shower. He's hard, tenting his towel. Temptation lingers as they remember their taboo encounter from last night.