Anime series that are about fun fanservice

Basically I was learning about the nudist movement in some parts of the USA as it fascinated me for some people live, and then it suddenly got me interested in seeing if there was an anime series where the characters are not afraid to indulge in shameless fanservice.

However, I would be ok with a well written plot as I was just looking for some modern shows where fanservice is handled in a fun way where the message is that there is no shame in nudity.