Bored siblings, confined to their shared room, can't help but notice each other's growing restlessness. The brother, his cock twitching in his shorts, watches his sister's ass sway as she paces. She catches him staring and, instead of being upset, playfully teases him. They begin to touch, tentatively at first, then more urgently. He grabs her ass, pulling her close, his cock pressing against her. She moans, rubbing against him, eager to feel more. They strip each other, their bodies glistening with sweat and desire, as they explore each other's most intimate places.