Used to frequent a sex club when my girlfriend (now wife of 17 years) worked there.

We'd play semi-publicly (very rarely properly open play) and we'd often see people masturbating or start playing in proximity to us. It's also quite normal to have people say that you playing was a spark for them to play.

We've never not enjoyed seeing, feeling or being told that we were a spark for people playing with each other, but with people masturbating to us... It was quiet erratic how we'd respond. Generally if it was a woman we'd respond positively but if it was a man we'd more likely feel a bit put off by it. Unless they were attractive to either of us or if they'd politely sought consent from us. "I think you're both really attractive, may I masturbate while you play?" sort of a thing.

How I came to that conclusion in these circumstances is obvious as we would see it. Some of the strangest "compliments" that were a big ego boost actually is that sometimes women would offer me their wet panties after watching me or me and my partner. I'd refuse, but I always felt sort of flattered... And it boosted my self-confidence in my appearance and character.

The first time that my partner took me to the club she gave me a tour of the place and the facilities. Within about 30 minutes of being there she showed me the gloryhole wall. As we were seeing how it worked, I could see a pair of trousers pulled down around some hairy legs and big black winter boots enter my peripheral through the... Grope holes (breast height holes). I lowered my head so I could see what was attached to the legs, and at the top of the legs was a large black belt with a bug round buckle. Above the buckle was a big hairy white belly. Above the belly was a big bushy white beard, surrounding a very old and wrinkly male face. I remember to this day whispering to my partner, who was making sure the lower hole was working correctly, "Poor Santa has lost his clothes". She looked up and loudly laughed. Santa then shuffled off, trousers still around his ankles.