In a cramped attic, a brother and sister, both teens, start a yoga session for fun. As they stretch and bend, the brother's eyes linger on his sister's curves, hidden beneath her tight yoga pants. She notices his gaze, and instead of stopping him, she playfully poses, flaunting her body. The room fills with their heavy breaths as they move closer, the brother's yoga mat now inches from his sister's. Their hearts race as they lock eyes, the yoga session forgotten, replaced by a intense, taboo desire.