I do completely agree with Dakota - being in appropiate circumstances (shower rooms etc.) it is no shame to show nudity. A different thing is e.g. going to nudist beaches just to watch naked people (or boys).

Even if lust arises to some degree in common nude situations that is no problem as far as we keep it for ourselves. For myself I can say (and I feel happy with that) I do not feel much of sexual lust when I see naked boys - but I adore his perfect body, perhaps wish to lay my arm around his shoulder, perhaps even love him, but I could not imagine to do s/th sexual with him. (That does not mean I might be overwhelmed one day and feel differently, so I am not seaking for these situations, but do not actively avoid if they arise.)

Some passages in the scripture show nudity as a shame (Adam & Eve after sinning, Noah, even our Lord Jesus at the cross was probably naked). But exploring the context we see that it was always in no appropriate setting (after sin, when being drunken, etc). I think God created men "and saw that it was all very good" (Gen1) - including male nudity.

I am trying to keep it as natural as it was created, trying not to be overwhelmed by some lust, and trying not to create ungood antipathy - if in common situations.