Kimmie hates her step-sister's fiance and wants to break them up. When she finds him groggy after his stag do, she decides to find out if her step-sister likes him because he has a big cock. With her friend Samantha, they strip him off and start wanking his cock. He starts moaning about how good his fiancee is at turning him on and the girls laugh that he thinks its the step-sister jerking him. They suck his cock until he cums all over himself then take photos before leaving without him realizing who has sucked him off!