.. I love cock in my ass... I love it..." I went ahead and pushed him back forward and started to pound him again. Fucking him as we moaned getting lo...der and louder, so loud that I had to stop just so we could take a quick make out session before we would continue. I pounded him from behind again and this time I could only go on for so long as I felt my self ready to cum. My hands ran all over his body and ass as my cock got harder. "Fuck.. that's it... im going to do it... im going to cum.... Bob gripped his sister’s clit between his lips, sending Marla into a shaking rapture of multiple orgasms.Sally, weak, fell off her mother’s face, curling up into a ball as her naked body trembled. As her orgasms faded, Marla’s naked ass lowered to the bed, and Bob pulled his cock from her cunt; spreading out at her side.They dozed awhile, exhausted by the wildness that had overtaken them.When Marla woke up, Bob and Sally were still sleeping. They had somehow, gotten close together, and Bob’s. . She was plump but not fat and she had two pillows as boobs. She was 34 and unmarried. And she was replacing Mr. Adams in Biology he was out with a burst appendix.When the police released us I walked with her the rest of the way to school. We stopped by the office so she could explain and I could get a hall pass. They agreed to call the Hospital to check on Artie. I tried to call home but there was no answer. I finally got my Mother on her Cell and told her what had happened.My first class was. And, with my hand still on his arm, he continued to stroll down the street as if my bra was of no importance at all. And then, mortified, I said "My panties!" but I'm afraid it sort of came out as a squeaky whisper."Ah, those," he said, and he reached into the pocket of his sports coat and pulled them out. "Hope you don't mind my keeping these. Sort of a souvenir."And that made it official, I guess. He was going to have sex with me. I was about to become one of his statistics. My panties would.