Visual Buddy

Also known as a visual buddies, visual mate(s) or visual model. This is a person or group that are comfortable naked around each other or allow themselves to be naked for someone. This can be a friend, group of friends, or a stranger(s). This does not necessarily involve sexual intent.

The term comes from art, where a model poses in the nude to be a visual reference to the artist.

My roommate is my visual buddy.