But if you don’t want to it’s okay, only it really would be a big help and we could give you some kind of reward or something if you wanted.”“...Like what?”“I dunno, what do you want?”A million ideas flooded my head at once, but I didn’t say anything. Tracy turned to leave, obviously disappointed but looking a little relieved, too.“That’s okay. We’ll just be downstairs studying if you need anything.”After two minutes alone in my room, my cock vacillating between a flag pole and a scared puppy, I. After I removed her nighty and sucked her boobs for a while and she gave me a blowjob and I made lay down in missionary position and fucked her she was moaning I locked her lips and fucked her vigorously in 10min I was about to cum I took out cock and fucked her boobs and cummed on her chest and fell on her and I slept on her when I woke in the morning she was not there I was laying naked under the blanket.I took a bath and came the time was 10am out there was no one there I all rooms and to. Her tits were having a little slippage at times and the outline of her nipples could be seen through her top. I kept encouraging her to get really low to play her shots hoping we (the other guy and me) would get even more views. We kept drinking and I was getting a little drunk. M won the first game (I think he threw the game to keep M playing knowing he could be behind her and getting the extra view). I had an easy shot (not that I can play) and I jokingly said, “If I miss this M will. You said that you watch films in the nude so why not undress?". "In front of you, Ethel?". "Why not? I won`t mind. I`ve seen a little of that film and I`m a little worked up, too. I`d love to see you naked and masturbating". "I`ll do it but you should undress, too". I ran the film back to its` start and put it on hold then we returned to my lounge and undressed. I`d never before seen my sister naked and I liked what I saw. So much so that my cock, which had softend a little, swelled up again..