Donnie (Donnie Rock), a young amateur chemist, needs a guinea pig on which to test his latest concoction. He believes he has created a potion that will turn normal everyday girls into raging sluts. So, he spikes the ice tea,offers a glass to his virgin sister (Tara Ashley). She takes a few sips,low-and-behold, his potion works! His sister becomes super horny. She can’t control herself,rubs-one-out. Ramming her pussy with her fingers, she brings herself to climax. That’s when she notices her brother peeking from behind the door. She commands him to “come over here!”,commences to give him a deep, sloppy blowjob. She enjoys gagging on her brother’s dick. Craving cock in her pussy, she climbs on top,fucks him. Donnie plows his now-slut-of-a-sister from behind. As he rubs her pussy, she lets out a loud queef. Tara lies on her back a let’s her brother fuck her hard until he cums,shoots a load of jizz into her mouth