Is it normal to shower with your best friend?
Depends.It depends
Some best friends shower together, and others would find it awkward. It’s fine as long as you both genuinely feel comfortable and respect each other’s boundaries.
It can happen for practical reasons, as a silly bonding thing, or because nudity just doesn’t feel like a big deal between you. There isn’t one standard best-friend rulebook for showering together—people have very different comfort levels around privacy and being naked.
The important part is that you both want to, without pressure or assumptions that it has to mean anything romantic or sexual. If either of you feels awkward, say so and shower separately; a good friendship can survive a closed bathroom door.