When I was younger (>10 years ago), I was a super horny kid. I masturbated 2-4 times a day, every day, sometimes without porn.

So one day, I was curious about how my own cum tasted (I'm straight), hence I started fantasizing about having a girl (one of my classmates then) giving me a handjob, with her mouth wide open in front of my cock. As I was in the toilet and about to cum, I propped myself upside down against the toilet wall, aim my cock at my mouth, and shot my cum directly in my mouth.

It was a weird feeling, having the warm stick substance hit my face and tasting the salty semen in my mouth. I was grossed out after that, but a few days later I felt super horny again and did the same thing. This repeated a couple of times until I was totally grossed out by it.

So there, my confession.