Step-Sister Possessed By Slutty Spirit

Description: Being the good step-brother that you are, you agree to spend the night with your step-sister in an allegedly-haunted house as part of her sorority hazing. you agree to rest in shifts, with you taking watch first. but your step-sister is down for only a few minutes before she sits up, seemingly wide awake, and goes straight for your cock! repeating the mantra, "step-brother, breed...step-sister, breed!" she sucks your dick before mounting you and riding you while repeating her robotic mantra, become more frenzied in her riding until first she orgasms, then you cum inside your step-sister. having successfully extracted your seed, your step-sister goes back to bed without another word. sure, that was pretty unusual behavior from your step-sister, but it clearly was your step-sister. after all, you don't believe in ghosts...right?