In the early morning light, a horny teen brother starts his day with a wank, only to be joined by his curious sister. She watches, fascinated, as he strokes his big, veined cock, and can't resist getting involved. She takes over, licking and sucking his shaft, feeling it pulse in her mouth. He pulls her onto the bed, spreading her legs, and rewards her with a taste of her own medicine, fingering her pussy until she's dripping. She cries out as he enters her, stretching her tight cunt, and they fuck rough and raw, their bodies glistening with sweat, until he pulls out and covers her stomach with his hot cum.