I can be a sly bitch when it comes to persuading the next guy to fuck me. My sister's new date rang the doorbell and I flirted with him straight away and made clear comments. As she wasn't there yet, I took the opportunity for a quickie with success. I took him by surprise and blew his cock. He got so horny that he didn't care whether he was fucking my sister's cunt or mine. I held out my cunt to him and let him fuck me from behind. But apparently my wet cunt was too tight, because unfortunately he couldn't hold out for long.