Taboo family sex: I hid my erection in a chip box and she unknowingly indulged in it.

In a wild prank, I hid my throbbing member in a chip box, only to reveal it to my unsuspecting stepsister. The shock turned to arousal as she eagerly took me in her mouth, then allowed me to penetrate her sweet pussy. After a steamy session, I filled her with my warm release, leaving a satisfying mark on her pretty face.