Stuffed into the tiny closet, the siblings, their bodies pressed together, can't deny their mounting arousal. The brother's cock tents his pajamas, while his sister's panties grow damp. Their hearts race as they steal glances at each other, their breaths syncing. She bites her lip, her eyes flicking to his bulge, before looking back up at him. He leans in, their lips mere millimeters apart, when suddenly, the door creaks open, their secret moment shattered by the intrusion.