My first sexual experience

Mine was also with an adult male and my being to young to get pregnant was a bonus for him. I didn't tell my parents because I really didn't want them to know that I got naked and did it with him that one time but I also didn't want my parents to know that I masturbated often, which I had stupidly admitted to him. I had to live with knowing what I did when I was a preteen.

My very first experience happened with an adult in his mid twenties when I was just freshly thirteen. He definitely lured me to his apartment with the promise of getting access to porn and he delivered the kind of extremely hardcore foreign language porn photo magazines that featured kids my age and younger engaging in masturbation and sex. I was just a bit shocked but it did get me very erect and depleted my social barriers. In the long run I bottomed for him several times with the help of his vast co llection of those magazines he had as foreplay and his penis and his way of doing anal sex to me became the Gold Standard of my sexual life. I eventually became an avid collector and carefully pursued becoming several very young and discreet guy's first experience. 

Well, at least I now know it was just me.
My first girl/girl experience was with an adult female while I was still very much a minor. It was a kind of short term thing that lasted just over like seven months, with very sporadic occurrences until my mom showed her first signs of suspicion over my "friendship" with her. We stopped immediately because the consequences of discovery would have been disastrous since my father was a very conservative politician at the time. She and I got away with our very inappropriate behavior. My parents never found out.  

I was 11.  She was 17. She told me how her and her friends used to play with each other when she was my age.  I asked questions. She said she’d show me. We ended up naked with her fingering me to several orgasms. Then she got between my legs and licked me out. She encouraged me to do it to her and I willingly did. We had the most amazing afternoon. That’s when I knew I was a lesbian. No regrets. 

I was 10. Me and my friend had gone swimming at the town pool. When we were done we went to the changing room to dry off and get dressed. He told me to come into the same cubicle. I did and we took off out swimming shorts. He began playing with my cock which got instantly hard. He was hard too. He was pulling back my foreskin and rubbing the head of my cock. He was circumcised so had no foreskin. We compared our cocks and he was jerking my cock. It was the first time another person and done it to me instead of myself. It felt so good and then he got down and took me in his mouth. I was loving it and he made me come.  Then he said it was his turn so I sucked his dick as he did to me. He couldn’t hold back and came too. Then we played with each other a bit more and finally got dressed. We went back to his house which was a short walk and as soon as we were in his room we got undressed and played with each other again. 

With my best friend when we were both eleven during a sleepover after admitting masturbating to each other. We started masturbating in the dark right next to each other, very discreetly under the sheets and eventually we were masturbating each other.