Bored siblings, Michelle and her brother, find themselves alone and horny. She retreats to the bathroom, masturbating furiously under the covers, her fingers finding her wet, throbbing pussy. Her brother, overhearing her muffled moans, bursts in, catching her mid-orgasm. They clash, Michelle cursing, but later, they bare their desires. Naked, Michelle drinks in her brother's massive cock as he strokes it, imagining it inside her. Just as they're about to cross the line of no return, a noise from outside interrupts them, leaving them breathless and frustrated.