Three female friends share a house, curious to see how each other's boyfriends have sex, and unwittingly tempt them with their unprotected panties. While everyone is out, she is left alone with her friend's boyfriend and is at her limit. He turns into a sadist and attacks her, soaking her panties and giving her a deep throat blowjob, making her drool. They swap couples and have an affair, and the intense pistoning makes her cum so hard!