Anus exposed publicly
 

If there was an exhibition at an art gallery you could get to, and there were several sets of restraints that spread your legs apart and also your hands restrained so you can't cover up. A certain amount of people could do it at a time and it was for visitors to sit with their anus exposed (but not genitals - something would be provided to cover your genitals - and could wear a top if guests wanted to). And you got free cake and drinks (tea, coffee, juice) in the cafe afterwards And guests were allowed to take photos (your face also visible), would you do it? And how long for (say minimum was half an hour and maximum was three hours)?
If you would do it, would you do it if the restraints were outside the museum on a busy street?

I definitely would, full three hours even if it was in my hometown. I would also be happy to do it outside. I would do it the full three hours I would agree to even if friends or family came by.

I would do it. And would come back every night if it was a temporary exhibition for weeks.

And I'd do it even if it was outside the museum on a busy street, assuming it was an art exhibition I would assume that there would be no legal issues with doing this that is. And I would say the top isn't needed and covering my little cock wouldn't be necessary and perhaps my chastity device would serve for that purpose.

And like you, if it was in my hometown, I'd sign up. I think it'd be interesting if it was a traveling art exhibit that they sought out local talent. And I'd sign up for the max every day to stay out on the street to give a sample of what they'll be seeing more of if the pay the entrance fee. Of course, local news would be stopping by for this controversial art show and blurring out parts of me for their live newscasts which would undoubtedly bring more friends and family down. It would be so totally humiliating, but fun. I can only imagine the friends coming by to take pics!

no of course. Plus many people like me would prefer to show genitalia

I like the idea of exposing my anus since I'm an anal slut, so it suits me.

However I don't like art galleries usually. :)

That sounds kinky.
I would do it restrained in a Museum but not the street.
And I would do it for three hours.

I would not do it probably, for the visible face. Other than that, why not? I'm not particularly sensitive about anus exposure.

That would be fun. I'll take the drinks. Not really a big cake eater.

Anus exposed
 

I know I already posted here and described how I would do it.

But has anyone actually seen this happen?
I am curious if people did this?

Interesting and original concept considering my penis and testicles would not be exposed then. I don't know if I would do it, maybe if I get a wax first and if I could shower first maybe. The anus is the dirtiest part of our body so I'd want mine to be clean. I wouldn't do it if my face was visible though.

Are the guests allowed to touch?

I would have no problem doing it. Have done something very similar a few times already. My wife is my mistress, and a few times now she has had me tied in the corner of our living room. Hands over my head on a rope. She has me blindfolded with swim goggles that have been blacked out. I’m full naked except for my chasity cage. I have no idea how many people she has over, or if they’re men or women. This last time, she also put EarPods with loud music so I couldn’t hear anything.

I've not seen it happen but would be great if some artist arranged something like this, especially if they were traveling around the UK. If anyone heard of anything like this, let me know!

I like to keep my anus clean even though I'm not gay, no harm in it. I'd still do it if my face was visible.

Regarding touching, maybe they could have some people that allow touching and some don't. Maybe they could supply items, eg feathers, butter, etc to use when touching.

Regarding the touching, I more mean, will people be allowed to stick their fingers up my ass? lol

I guess there could be guests allowed to do that, a hand washing station or wipes could be provided so their fingers are clean. If it was me, I'd certainly allow it.

I think I could to it inside for a couple of hours where no one would get offended or call the cops. Would rather show my genitals than my face, though.