Exhibitionist Sis

My sister is 1 year older than I. I honestly don't remember a time when she didn't expose herself naked to me. Younger we took baths together, then when she got her period and started developing that ended. However; it didn't. It only ended what our parents knew about. My sister was very pretty, grew into an absolutely incredibly beautiful woman.
After our mom stopped our baths, she would come into my room or sometimes call me into hers. I'd go in to see what she wanted and she would be almost naked pulling down her panties. She'd make up some excuse for me to stick around, and I'd get hard naturally! She said that with no one home but us, I should get naked too. I didn't want to and she insisted.

Naked with her, she wanted me to rub her now slightly hairy pussy, she was standing, my hand between her legs and she had to lie down and I'd keep rubbing till what we later knew was her cumming. I was rubbing myself too and after she came she used her hand up and down like I showed her and I shot off all over both of us and the bed covers. With that she made sure we spent naked time everyday. I didn't mind it, I liked her, liked seeing her developing tits, sucking on them, rubbing her pussy and I loved coming from her hand. Then we started oral on each other, she swallowed my cum and determined that is the way we need to do it in order to keep from getting it all over. By 14 I could fuck her between her now C cup tits, and we started with me rubbing my cock between her pussy lips. She came, I'd shoot on top of her pussy hair and on her belly, up to her tits. It was a short hop from there to fucking. She was so scared at missing her period after we first did it, then she showed me some pictures and I started fucking her in her ass. Though sometimes we took the chance and did it in her pussy too.

I am now 24, she is 25 and married to a wimp of a guy. She and I fuck more than they do, I still cum up her ass a lot, he won't touch her ass, thinks its dirty. She actually can cum from an assfuck and I am her outlet. I date and fuck other women, but I think as long as we can she and I will always be sister and brother, a very very close sister and brother. She's on BC now and we can do as we will. She even took a two week vacation with me while her husband was on a travel job. He knew, our parents knew but none knew that we shared a room at a beach resort.