Is it normal i had sex at age 14!

One day I went over to one of my parents
Friends house for a party and they have a chick that's 15 and a bro at age 10. So we decided that we would sleep in a tent together outside. So we all took showers and got ready to go in. (I wasn't turned on yet) so at the last minute the boy chickens out and decides to sleep inside. So now it's just the two of us. We got in and got settled((--!!QUESTION!!--she told me to get in my boxers so I did and that made PRETTY happy)). is she horny? And now is when I get turned on. She got I'm her bra and Underwear. and now I have a HUGE boner that I think she knew about because she kept looking down there. After awhile of talking we decided to go to sleep. I waited for her to go into deep sleep and then when I knew she was asleep I slid my hand into her pussy and rubbed it. She started moaning after awhile. She cummed alittle and then I starting jacking off and that's when she woke up and looked at me and kinda freaked out and then smiled when she saw my dick. Ooooo it's big. Ya. You want it? Oohh yaaa. Then she gave me the best blowjob ever and I rubbed her pussy even more. Then she gave me a handjob while I rubbed her pussy. We decided it was late and went to bed. I probably had a boner all night and she was prbably cumming too. In the morning she woke me up and she was already dressed with super short shorts. From different angles you can see her pink underwear :) plus she spread her legs out to me. At that rime I was turned on again but no boner yet. I bet she couldve seen my dick from my boxers. After that we've always liked eachother and still do. ;) (kind of a long story I know)