How old when u gave 1st BJ

I was 11. One of my cousins was spending the summer with us. He was 9. I had twin beds in my room so that is were he slept, in the bed across the room from mine. On the third night, it just popped into my head to try and give him a blowjob. I went over to his bed, pulled back the covers and reached into his pajama bottoms. I jerked him off until he  was nice and hard. I then started sucking his dick. He didn't say anything just spread his legs open more. It didn't take long for him to cum. I replaced to covers and went back to my bed. The next day neither of us said anything about it. The next night I tried it again, and then the next night and the next. I ended up sucking his cock every night that summer. To this day we have never talked about it or told anyone.

My best friend & I were both 12. We were looking at online porn at his house, while his mom was out, after having a long conversation about jerking off. 
We both got erections & we were feeling up each other's erections through our jeans when he suggested sucking. I did not hesitate & unzipped. He sucked me pretty close to ejaculating before I tapped his shoulder. He stopped, leaned back, unzipped. I sucked his, while he gently jerked me slowly, until he tapped my shoulder. 
We then both jerked off all the way as we watched each other. That is how it started for us. We did more stuff whenever we could without getting caught as time went on.