zenra
A fetish in which public nudity and sexual acts is treated as a normal everyday activity.
"Zenra" is a Japanese word, literally translated as "completely nude". Zenra fetish features people (usually women) participating in everyday tasks that they might otherwise perform clothed, such as casual scenes with participants playing in an all-nude orchestra in a seemingly oblivious state of mind towards their nudity. Others incorporate the nudity on a more conscious level by doing such things as playing "strip volleyball", where the participants must remove clothing each time the other team scores a point.
While very similar to exhibitionism and nudism in concept and often overlaps with each other, zenra fetish can be distinguished by how the setting treated nudity and sexual activity, as zenra fetish treats nudity either as a social norm at best and a minor inconvenience at worst. In addition, some zenra works also further emphasize sexual elements of the character (such as character exposing their private parts) as another form of beauty standard.
Please note that bathing or tanning on the beach are not zenra as that is normally done naked.