Later that day I still can't get my mind off what had happened earlier...outside rubbing oil all over my sisters tits and ass. What was happening? I mean in the last few years she has really developed into a beautiful woman, I've seen it happening the whole time but never really noticed till now. After dinner I retire to my room, with the ideas still fresh in my head I think I'll just rub this one out and call it a night. As soon as I grab my lube in comes Courtney asking..."What are you doing?" You know what fuck it I think this is my chance, nervous as all hell I hand her the lube. She reluc... Show more