As I'm single since always, my whole sexual experience consists of masturbation. My first time, I was 11. I was in the shower and while washing my butt, I don't know why, I felt . . . strange . . . I don't know why, but I liked it. Since that day I began to wash my butt with increasing intensity. That's how I've discovered my passion for anal.
During the two next years I used to anal masturbate once or twice a week. That's only after several months ( like 8 or 10 )I actually had my first orgasm. It was incredible and a bit scary. It was a full anal one. Without any pussy touching. I wasn't sure it was a good sign, I was lost and stopped masturbating for some weeks.

I think that's exactly the moment when i felt in love for the first time. I have a nice big sister ( 3 years older ), Lydia, she was already much more mature and self-confident than I was. She's at the same time my best friend and my second mom. Sometimes when there's not much hot-water left, we take a shower together. It eventually arrived during these weeks i was too scared to continue masturbating. I was stressed and arroused. I wanted to touch my butt but I didn't dare anymore. This shower was one of the most erotic moment of my life. I swear we haven't touched each other. Lydia is probably totally unaware of the fantaisies that took my mind during these apparently innocent moments. But during this shower I began to conceive desires for Lydia to touch my ass.

Of course, I know it's not acceptable, but since that evening I've never been able to stop thinking at my sister's body. A few days later I began to masturbate again. But things had changed. It wasn't innocent exploration of my body as it previously was. It was now full of desire, a sort of lust and also a bit of shame. Strangely it was also far better than before. I understood what horny meant. I was not only touching my butt anymore but also my breast, reaching longer and deeper orgasms.

Pushed by a growing desire, I began to sneak upon Lydia. She was never ashamed in my company so i could easily enter her room when she was changing or in the bathroom when she was nude. I tried to makes it natural, inventing some nice excuses and each time I could, I looked at her beautifull body ( I envy her, she's so wonderfull when naked ) and felt this strange and nice mix of shame and desire.