My little sister Megan had an accident when she was eight years old. Two things have subsequently arisen from the accident. Firstly, she can't have kids. And secondly and the thing which has brought us together sexually, is her libido is really high.
Sat in a restaurant about eighteen months ago, we were chatting about her latest boyfriend, who had dumped her. Not through not getting enough sex, but because he couldn't keep up with her demands for sex. Half joking half serious (My sister really is a stunning looking girl) I told her she should let me fuckm her because I'm always horny. Her response was to drag me up and ask me to follow her.
In the ladies bathroom, Megan pulled me into a stall, lifted her skirt to show me she wasn't wearing any panties and told me to shove my dick up her. I hesitated at first, after all it was my little sister. But when she pulled her ass cheeks apart and said "You sure you've never thought about fucking me". She was right, I'd often day dreamed of sliding my cock up her pussy, but they were only day dreams. Actually looking at her beautiful looking pussy and ass, was something entirely different.
Lowering the shorts and boxers I had on, my cock sprang forwards and my sister said "Wow my big brother, you are packed aren't you". I didn't wait to be asked again. Knowing she couldn't get pregnant, I slid my dick up her pussy and began to fuck Megan hard.
Women came in the bathroom and probably heard us fucking, but I didn't care by then. Megan's pussy was so tight wrapped around my cock, I only lasted a few more minutes and busted my nut up her hot wet pussy. Turning her head she said "Hey I've not cum, you'll have to lick me". Getting me to sink down, she put her right leg over my left shoulder and gripped my hair. Pushing my face into her cum fulled pussy, I kissed, licked and sucked on my sisters clit until she bucked real hard and came all over my face.
Back int he restaurant, the guys serving us were laughing and I knew they knew we'd been having sex. Paying up we left and got into my car. Half way back to dropping Megan off at my parents home, she asked me to pull over. Parked up, Megan leaned over, undid my shorts and took out my cock. Sucking in my dick, she slurped away on my cock for about ten minutes making me moan loudly with her amazing oral skills. Holding her head tightly, I began to thrust into her mouth hard and came fro a second time that night, filling her mouth and making her swallow my watery cum.
The next morning as I woke up in my small apartment, I looked at my phone to see a message from Megan. It reads (I've kept it) "Really enjoyed last night, hope you like me, want to make this something special. I'd love to visit you at your place later, let me know if and when I can. Love Megan xxx".
I invited Megan around for her evening meal, only her meal was my meat. And my little sex driven horny sister, took it all night and into the following morning.
Megan and I have been lovers since then. We try to keep it secret, but occasionally we can't help ourselves and find that we're licking sucking and fucking outside. We have been watched on a couple occasions, but we both find it only adds to our excitement, and frankly we couldn't care less if we are now found out.
We're not going to stop seeing one another, that's a fact. So whether we're supposed to be having sex together or not, Megan and I wil always continue to fuck one another, no matter what people we know, society and the law thinks.