I reckon the whole 'out and about' thing is no more than a gentle (and discreet) version of basic exhibitionism.
OK, so it's not exhibitionism as such! It's not as though one stands in the middle of the street and yells "Hey, look what I've got stuck up my [insert preferred orifice] here!" It's more subtle than that.
It's about being in a public place, while performing an act that others might look on as rude, and not letting on.
This morning, with my brand new "3 bangs (junior)" firmly and deeply embedded where the sun doesn't shine, I decided I needed to go shopping! But I live in the wilds of mid-Wales, so 'shopping' isn't just a matter of walking 100 yards down the road to Sainsburys! It meant a 26-mile round trip on my Suzuki AN400, to find an establishment that roughly equated to a supermarket.
Huh! Pardon me while I puke.
The journey itself was exciting! Every bump in the road produced delightful sensations, and when I got to the shop my jeans were feeling rather damp in places. I was praying that it didn't show.
Of course, once I got into the shop I bumped into a woman I knew! We hadn't met for a few weeks, so there was a fair bit of chat to exchange! And guess what - my '3 Bangs' decided that THAT was the best time to try expelling itself!
It's hard to be discreet about shoving something back up your arse while chatting in the 'cheese and butter' aisle of a supermarket! I tried to make it look as though my underpants had just chosen an inconvenient moment to get stuck in the crevice, and my lady friend was being very careful not to notice what I was doing!
The ride home was just as erotically thrilling as the ride out. When I got indoors and could check, I found that my underwear had absorbed everything. So phew, no problem!
Yes, James55, you're right - it all boils down to masturbating on a bus. But any sweet, enjoyable act can always be described in a way that makes it seem crude or disgusting. The most profound act of sweet, sincere love can always be dismissed as a fuck, can't it?
If this private and discreet form of exhibitionism doesn't turn YOU on, that doesn't mean we all have to stop doing what we enjoy and restrict ourselves to whatever perversities you yourself might find amusing.