OHOHOHO BOY, I went about revealing my kinks in the WORST possible way when I was younger, BUCKLE IN.
So basically, back when I was in high school, I was a miserable lonely creep who had no idea how to manage relationships in a healthy way, and was absolutely desperate for any form of intimate human connection. In a VERY misguided attempt to deepen my bonds with my friends, I thought, "Hey... what if I told them big weird secrets about myself? Close friends share secrets with each other, after all!"
Completely unprompted, I then went around to like TEN friends and acquaintances over the course of a week or two, asked if they wanted to hear a secret, and whispered about how I liked drawing pregnancy and vore art. Precisely two people thought it was funny and were cool with it, everyone else was just like "Um... okay? Why did I need to know this???" My dumb ass was riding the adrenaline, like "Hehehoo!!! I'm so quirky and weird!!! I draw porn!!! I'm a weirdo!!! Your reactions are funny!!!" without a care in the world.
Obviously, behind my back, several of the people I told this to talked about it with their friends... I have no idea how many people ultimately found out, but I definitely garnered an unspoken reputation of "weird porn-addicted guy." I then kept acting like a massive creep in a bunch of different ways for a couple years (e.g. crushing on one of my best friends for a year even though I knew she was already taken), and this all culminated in me (rightfully) being exiled from like two different friend groups! It sucked!
Went through a bunch of depression and self-loathing about it that ended up spilling in to adulthood, but I eventually made peace with it. A couple of my current friends already know about my fetishes (one of whom was a friend who stuck with me even through the above-mentioned CRINGE) and they're chill about it. Pretty sure my family already knows about it as well (I was bad at hiding it when I was younger), but they don't mind, and never really mention it.
As long as you're NOT being creepy, and all parties involved are consenting to talking about it, discussing your kinks with your friends CAN be a fun goofy secret-sharing experience. I did not fulfill either criteria when I did this! Jesus christ!!!
So if any of you are insecure about getting found out, don't worry! Whatever happens, your experience will, hopefully, never be as utterly cringe-worthy as mine was, lmao.