She started dancing that 13 year old body around and I could not believe it. Slowly she grabbed her hem of her dress and slowly lifted the dress off h...er body and tossed it to me. Her body was gyrating in her “Hello Kitty” panties, trainer bra, and tennis shoes. I quickly looked at my watch to see the time. It was early yet and mom and dad were not due home for some time now. Another song came on that I did not recognize but later found out it was a Shelly West song called “Sexy Song”. At the. It’s getting pretty late.”After looking at the clock KK replies, “I’d no idea it was after ten. Do you want something to eat or drink while we relax our minds?”“I’d love a dish of ice cream.”“I could go for that too. What flavor?”“Some of that Summer Peach would be perfect,” replies Kyle.“OK, I’ll get that for you and a dish of cookie dough with chocolate syrup for me.”While KK is getting the dessert Kyle checks the security monitor and verifies all of the alarms are activated. Once both finish. They didn't deserve what she had been planning to do to them, exposing their secret sex with their sons. That was a terrible thing for her to even consider doing. What she deserved was a good sound spanking.Then there were no more thoughts like that. Her brother was bringing her to the peak of her passion. She let out a joyful shriek and sailed into her orgasm. With her brother she always had such fabulous climaxes, so intense they almost made her toes curl. She bounced around on the bed like. ..the wetness and the heat. We both came holding hands and pulling ourselves in tighter as we did the bump and grind against each other. I didn't expect to come from that but we did and fuck me it was hot!We went and showered and I gave Lisa a t-shirt to sleep in. We cuddled up and slept most of the rest of the night, waking up once and kissing until we couldn't take it anymore and we fingered each other to orgasm again.I woke the next morning and Lisa wasn't in bed. I wondered if she woke and.