Two siblings, bound by blood and boredom, find solace in solitary pleasures. She fingers her wetness, he strokes his stiffness, each unaware of the other's indulgence. A chance encounter in the bathroom ignites a heated argument, but later, they return to their shared space, naked and vulnerable. She takes in his impressive length, he admires her curvy form. As fantasies of forbidden pleasures consume them, an unexpected intrusion forces them to halt their budding intimacy.