In this adult sibling role-play, my normally serious sister gets extremely touchy whenever she drinks, pressing her breasts and ass against me until my cock is ready to burst. Thinking she is too drunk to notice, I secretly rub myself between her black-pantyhose-covered thighs and cum all over them. Instead of getting angry, she sees the semen, becomes aroused, and hungrily attacks my cock. I give in and pound her with everything I have—and by morning she remembers nothing.