" Cums?" Christ, Christmas, you're almost 13 and you don't know what cumming is?" No, I'm not a sex pervert like you." She stuck her tongue out at thi... point and I felt my exposed dick begin to harden again. This preteen girl, my SISTER was trying to seductively lick her lips and damned if it wasn't working!!"Do you know what an orgasm is ya little brat?" Yeah, that's where you rub your pussy till it feels reaallllly good. I mean, erm, uhm, I..." Christmas stuttered and I grinned."So you rub. You'll get a special treat this weekend for being so brave. And MissMyra told me you didn't even cry."Somehow, having her come to check on me reassured me. I'd been wonderingjust what kind of hell I'd gotten myself into. But then as the weekunfolded I realized it was just like any other school as far as theregular classes went. History, Geography, Math, English, And so on. Theonly real difference was the specialized classes.Everyone filed into the room taking our seats by room number, this. It was then that I decided to go for broke and thrust harder. This time my cock entered the top of her throat. Heather spluttered around my flesh but did not look up or try to pull away. I thrust again, pressing further; I felt her gag slightly and then try to swallow. I pulled back and then thrust again, this time a little more of me penetrated. I moved my right hand to hold her under her chin at the top of her neck while my left held the top of her head.With the next thrust I felt her swallow. When one of the tentacles touched my kitty, I screamed and shook, that familiar feeling of blissful release flooding my brain.Mommy and Daddy never woke up during our nightly sessions. I didn’t quite know why, but I knew my lover had something to do with it. That meant I could be as loud as I wanted to, making sure he knew how great he made me feel. It only bothered me that I was never sure I was returning the favor. I assumed I was, since he kept coming back.By now, I was heaving and huffing,.