Is sending nudes to someone else in a nudist or naturist relationship considered cheating?

I’m new to this world and still learning and trying to understand it.

Let’s remove the part about talking to someone else without your partner knowing, and for now consider only the context of sending the photo. If it happens within a nudist or naturist couple, imagine you just took a good photo and decided to send it to someone—whether a close person or a stranger. Maybe not an explicitly “hot” photo, but one focused on certain body parts.

If it wasn’t sent in a sexual context (or even if it was—let’s open that possibility too), would it be considered cheating?