You and your sister find an old book written in a language you can't understand. You both unknowingly summon a Succubus that takes over your sister! She tosses and turns and realizes that she is insatiably horny. While she is masturbating, a werewolf sneaks into her room! He was also summoned by spell book! The Succubus inside your sister makes her even hornier and she isn't afraid of the werewolf at all. Instead, she eagerly invites him to come closer, so she can play with his cock. It'll be the perfect thing to satisfy her! She gets pretty loud while fucking the werewolf and the noise catches your attention. You go to see what is going on and you walk in on your sister being fucked by the werewolf! The Succubus inside your sister invites you to play too...two cocks are in fact better than one. Your sister sucks your cock and takes the werewolfs cock at the same time! You cum in her mouth and she cums on the werewolf cock! She is finally satisfied and hopes to do it again soon!