Me and my girlfriends little step-sister are always going places together and when we do we have a blast. But I cant help thinking that I have more fun when her step-sis is around than when it's just us. I was starting to get a vibe that her little step-sister liked me as much as I was attracted to her. I needed to prove this theory so I invited my Gf's lil step-sis to a get together... without telling my girlfriend!! Watch what went down!!!