How old were you when you lost your virginity

Lost it at age 13... The girl who I lost it to told me was around 19 she was going to show me how my "thing" works when I get older... little did I know I was actually going to have real sex with her. Without a condom too.. Years later I saw her in a movie theater and she went up to me and said "Don't forger I was your first haha" wtf? oh and I'm clean lol, got tested when I got older just to make sure..