Well here's a story
I'm a bit exhibitionist and last year I learned I'm bigger than average, so I like to absent-mindedly flaunt my bulge once in a while to a bunch of close friends. Always in context like wearing swiming trunks on holidays or going to the bathroom first thing in the morning when I'm staying at some friends. My wife finds it funny (she used to be much more private about my size and bedroom talents) and it's ok to keep the Reputation alive. Also I dont like to alienate anybody so I try to keep it respectful and to make it look accidental.
However I only "flashed" once, so to speak, a very long time ago just weeks after turning 18. It was actually very lighthearted and funny in context and long before MeToo and such so don't take it super serious ok?
It all started when I accompanied a friend of mine to get a tattoo. The assistant was a girl several years older than us, tiny (probably less than 5ft tall), soft facial features, and with tomboyish short blond hair in a quiff. Quite pretty and with a cool rockabilly old school tattoo-pinup aura. She kept looking funny at me, intrigued.
My friend organised a party at his place less than a week later and she got invited
(he vaguely knew her through some mutuals and it's a small town, y'know) and it was the usual deal, vodka mixed with soda, bad music, silly jokes etc...
I'm not drunk (yet) but we start chatting and she's ranting hard about some guy or something, it's pretty difficult to follow.
Suddenly, she grabs my hand and tells me to follow her so she can end the story. We go into a tiny bathroom, she pulls her jeans and underwear and she sits and starts pissing.
Now, I have a bit of a piss kink — I dont do golden showers or anything similar... but I find hot women pissing incredibly hot. It was something about her confidence (I'm actually quite shy myself when pissing in public) and she was right there below me, having a great view of her crotch, labia and the vigorous clear stream leaving her innards.
Needless to say whe started making out hard minutes later back at the party.
I can blame a combination of the liquor and
the sight of sweet perfect female genitalia which made me incredibly horny. It was not
that kind of wild party but us we were too focused in our task at hand and may have got a bit too involved.
So after like two hours of slightly heavy petting she grabs my hand and leads me to the bathroom yet again. I noticed the strange stares of the other guests
(themselves the usual local friends of the host with which I was not that close to be fair...) and I thought
"Wow boy they are gonna have a great gossip about this, huh? Now we better have naughty action of some kind because they are going to treat it like we are just going to fuck each others brains out, whether we actually do it t or not"
So we enter the bathroom and she starts peeing exactly like last time and I said something along the lines of...
"Hey do you realize I can see your privates from up here?"
She looked kind of surprised, like she didnt take that into account initially or she thought that I was not going to point that out, which
I find extremely difficult to believe, btw. And I added:
"Just so we both are on the same page, here are mine."
Unbluckled, unzipped, took out my rock hard cock in all its glory. Probably one of the hardest I've been in my whole life.
Back then I knew I was kinda bigger than average but I thought it only applied to moments like this one, being capable of having a bit of a "wow that's big" reaction.
She looked so surprised for some long seconds and suddenly she sprung up from the toilet and
started giving me a vigorous handjob, without even taking the time to put back her underwear. I remember thinking her hands looked sooo tiny compared to my cock (I inmediately understood why porn actresses have small hands)
and I reached orgasm after just a couple minutes. We cleaned the mess and she said something along the lines of
"Oh you're the whole package huh what a treasure. Naughty boy..."
We didn't do much else at that party outside the bathroom after that and I never met her again. Aparently she had a real complicated situation with that guy she was ranting about.
So I could say I only flashed because I was myself flashed earlier lol.
So I opened the fly and lifted my very small cock and balls out through them and waited. When he came in I just lay there pretending to be fast asleep. 
