Sibling rivalry is a funny thing. It usually doesnt make sense and it can be really fierce often causing someone to get their feelings hurt. Your girlfriend is no different with her stepsister so as soon as you're introduced to her sibling you can tell there is trouble brewing. Your Gf's stepsister flirts with you and takes every opportunity to show off her sexy little body. Normally you;d find it funny but the ting is that this stepsister is smoking hot, hotter than your GF, and your really attracted to her. Today your GF is out of the house and the stepsister is coming over to you. What are you gonna do?