Underwear Nights
I haven't gone to an "Underwear Nights" party but my lover and I have gone to pajama parties. Since he and I are both nudist and we both sleep nude, we were nude at this pajama party also. The hosts knew we are a nudists couple and they didn't have a problem with it. Everyone else was wearing some sort of night wear including tighty whities, boxers etc. but only one other couple (husband and wife) were nude with us.
I haven't gone to an "Underwear Nights" party but my lover and I have gone to pajama parties. Since he and I are both nudist and we both sleep nude, we were nude at this pajama party also. The hosts knew we are a nudists couple and they didn't have a problem with it. Everyone else was wearing some sort of night wear including tighty whities, boxers etc. but only one other couple (husband and wife) were nude with us.
Works at a private party, but I doubt I could get away with wearing my only "nightwear" or favorite "swimsuit" at the outdoor buffets on NCL where Norwegian says that passengers in nightwear and sleepwear are welcome.