Not because of quality, but I had the horrible luck of running into a woman at a couple swap party that had white supremacist tattoos. I noped out, grabbed my partner, and left.
I'm not talking a little thing that might have been a youthful mistake, I'm talking a back piece, neck to ass and all the way across, nazi crap.
In one go, never wearing any clothes at all, it would have been a week, plus or minus a few hours.
Went to stay with some like minded people for a vacation on private property at the beach. No need for clothes at all as the weather was lovely, the grounds were fenced for privacy, and plenty of supplies were laid in for everyone. Most people there didn't bother to wear anything at all. Some wore a robe, though rarely tied, instead of carrying a towel or other cloth barrier.
It was definitely a getaway for sex in various forms, but even with the dozen odd couples and handful of singles invited, there were plenty of breaks for other activities. Some would make a trip outside the property to go down to the actual beach, and would slip into swimwear, but once I rid myself of the clothes, I found I didn't want to put them back on, so never went down, except for one moonlight excursion.
Most of the non sexual time was quiet music, movies, games, and conversation.