I just had the best date ever, but my fiance told me we have to wait till marriage before we have sex. I don't think I can wait that long step-brother!! I have an idea, it's not cheating and it doesn't count if it's with your step-brother! We start fucking and my fiancé calls. He says he wants to have phone sex. I continue to fuck my step-brother while having phone sex with my fiancé.