Finally Kelly rolled off and turned around, snuggling up against her brother."God, John, that was the best fuck of my life," she said. "I guess I've a...lways wanted it to be you." I've never felt anything like it before," John breathed. "And it was definitely great." Yes, it was great," Kelly agreed, reaching up and licking his face, tasting herself. "I can't wait 'til the next time." Next time?" John asked, staring her in the eyes."Yes," Kelly said. "I think I want you to try your plan. But on. Sue kept her hand on my ass as we looked atmother. "So Jules how is the whore coming on, have you taught her any tricksyet"?"No not yet Sue, but I have a feeling she will be a quick learner"I Sent Mother to fetch us more drinks as I looked at Sue, she really didscrub up well. I had lent her my new black lycra dress and it clung to herbody so well. she had a wide pvc belt on which matched the shoes on herfeet. When mother returned with the drinks we made mother kneel infront ofus with her hands. We'd never really talked about sex, so for some reason I thought she wasn't interested in sex. In fact, when we used to hear Mum and Dad having sex in the next room, she always looked really embarrassed and never even mentioned it the next day. So I guess at that moment, listening to my sister being fucked by her man, I resolved to give in to my boyfriend's demands the very next time I saw him and let him take my panties off and then give him my kang-kang. I thought it would be straightforward.. “I’m going to be sick.” I said before jumping up. I ran to the door.Damnit! Mom had locked it. It took a moment but I finally succeeded in unlocking and opening the door, turned the corner and barely made it to the toilet in time.BLEGGHHH! URGGHH! BLEGGH!I threw up. Mom cheated! I mean ... just ... how could she?BLEGGHHH!It was then that I realized that she did what I did to Sue. How could I have done such a thing? I felt so, so bad. I kept throwing up until I had the dry heaves. I never had.