I was 11 when.. much to my surprise.. I saw my best friend of 12 had pubes. It was the first time I saw pubes of someone my age. I didn't expect this to happen already..
During a sleepover we got naked and he told me he could make some luscious white juice. He was eager to show how to do it, but at that time his manliness was a bit too confronting for me to be curious.. it frightened me a little.. He later told me he just waited until I was asleep..

My first cum shot could have been somewhat earlier if I'd have been less shy that night.. missing that opportunity to learn how to jerk.. though I'm thankful my friend just accepted I wasn't ready.
At late 13 I got some pubes, pit hair and very horny moods myself and, at early 14, I got my friend into a striptease card game with sex commands once fully naked.. including some wresting for acting being unwilling.. I wrote about this
game in my show-off thread..
Not having as much body hair as my friend already had, just some beginnings, I thought I couldn't make cum yet.. I believed cumming would only need just a few strokes of the foreskin over the cockhead.. And, when trying that, nothing special happened.. I showed him to prove it.. "See? Nothing."

My friend laughed a bit condescending and explained I just needed to continue stroking. Thus, sitting fully naked on the edge of the bed with my feet on the ground, I slowly stroked my hard cock for half a minute and quit again.. believing I proved again I just wasn't manly enough yet.. "No no, you have to keep stroking" my friend said. "Come on, go on.. stroke a bit faster and firmer." Fully convinced of myself that it wouldn't do anything, I followed his command just to show him as if this was a bet. "Is this fast and firm enough?" I asked laughing.
"Faster" he commanded. "Use your other hand to touch yourself.. your nipples, pits, chest, abdomen, belly button, pubes, thighs, balls, taint.. crack.." And I did.. grinning about his insistence.
I stroked and stroked.. faster, firmer and faster.. And.. ohhh.. before I knew.. I got dizzy, dreamy in an extremely horny mood I never experienced so intense before.. mmmmmm.. I lay back on the bed with my feet still on the ground.. stroking my cock.. stroking and stroking my foreskin over my cockhead.. as firm and as fast as I could.. playing with my hard nipples.. my pubes.. and.. ooohh.. aaaahhh.. the stroking suddenly felt like.. an unstoppable urge to.. piss.. oooohhh.. and.. I just couldn't stop stroking.. just had to relieve myself of whatever I felt was coming up my hard cock.. even if my friend would see it.. I just had to let it go.. ooooohh.. and it felt so intensely extremely good letting it go.. to let myself go.. oooohhh.. mmmmmmm.. aaaaaahhh..
Immediately after feeling fully in control again, I sat up and tried hiding I must have wet myself.. My friend laughed and asked knowingly what I was looking at.. I saw a few almost transparent white drops on my hand and my shrinking cockhead and realized, still somewhat overwhelmed, this was my very first orgasm.. my very first cum load.. and my best friend beside me on the bed had just watched it all from nearby..

Remembering being watched jerking and cumming for the first time always turns me on.. like now..

Also the horny fun that followed with this and other curious straight friends.. including some BDSM games.. humiliation (as teasing for being not-so-straight), bondage, pegs, candle wax..
Ever since the first time I'm a cum addict. A few hours later, after my friend left I curiously tried to have an orgasm again and tasted my cum for the first time.. And in a few weeks or months I discovered anal fingering helped me cumming more intense and even more times each day..
In the next few years I became a shooter.. and the cum loads became bigger and less transparent. I was a bit embarrassed about my shooting until I watched another friend shooting his cum load up to his chin and being embarrassed about it..
Sharing some public photos and videos of me being curious how I look like being watched from different views.. as by the curious friends.. feels a bit like reliving those naughty experimental times of horny and naked exposure..
Mostly when I jerk off I imagine it's like my first time again.. being watched. I don't know if my exhibitionistic desires and fantasies are because of my exhibitionistic first jerk-off or if it's just the other way around..