If you've been following the transformation story of Kari, you know from parts one and two that she started out as Caroline, a no-fun man-hating student. Fortunately she got some help from a guy in her class who secretly dosed her with a potion that turned her into a submissive bimbo slut! The effects of each dose are mostly reversible - with one catch. Each time Kari has an orgasm while under its influence, she loses 10 IQ points - permanently! As a result, she has steadily been getting dumber and dumber even without the potion. In this third and final installment, Kari has dropped out of school and become a stripper at her Master’s suggestion. She is getting ready for work when her old friend Becky calls. Kari is excited to tell Becky all about her new job, but Becky is disgusted by how much Kari has changed and hangs up. Upset, Kari calls her Master, who comes over and gives her another dose of the bimbofication potion, which quickly puts Kari back into a happy bimbo fog. Kari talks about how horny she is, and Master decides it’s time to fully enjoy his dumb plastic creation. He gives Kari a collar with nipple clamps attached and makes her wear it while she sucks his dick. He then bends the little slut over and fucks her from behind for awhile, before making her get on top so he can play with her big, slutty tits while she rides him. When she is about to cum, Master asks Kari if she wants to lose another 10 IQ points for him. Of course the dumb slut says yes, and cums hard on his cock. Master then tells her that her transformation is complete. She is now down to an IQ of 80, making her completely useless for anything but fucking. She doesn’t even need to be dosed with the bimbofication potion anymore, because she is stuck as a dumb bimbo forever. Kari is thrilled by this news - Kari loves being a dumb bimbo slut!