In the dim light of their shared room, a brother and sister find themselves alone, their bodies yearning for the forbidden. She watches him, his cock straining against his pants, as he tries to distract himself with a book. She knows he's thinking of her, just as she's fantasizing about him. Their eyes meet, and the room grows hotter. They try to resist, but their bodies betray them, their hearts pounding with a desire they can't deny.