A brother and sister, alone and horny, find solace in each other's hands. The brother's thick cock throbs as his sister's small hand pumps it, her eyes locked on his every twitch. They trade places, her pussy glistening as she spreads her legs, inviting his hand to explore her wetness. Their pace quickens, breaths syncing, until they're a mess of tangled limbs and shared moans, their taboo pleasure spilling out onto their entwined fingers.