some thoughts ...
It's all about context; nudity when voluntary could be anything from intimate, to thoughtlessly natural - but shameful when forced, even more so when in exposed in public... I'd say it would be even more intense if I'm ordered, and made to strip myself, than have my clothing torn off.
Could a good writer seize our attention with a woman clothed for her crucifixion?
No crux, but ... in this story by King Diocletian,
http://www.cruxforums.com/xf/threads/a-political-act.5948/ we experience the very intense humiliation of Isabel's character with her exposure ... even though she's 'only' topless and not fully nude, and for most of the time can still cover her chest. That's context too, because both the victim and her tormentors are convincingly shown in their social environment. It's hard to imagine how she could continue to socially exist there...
He doubted he’d ever see her again after this. Surely she’d leave, go into exile, away from those who had witnessed her shame?
...but the people who've conspired to punish Isabel can't get away with absolutely anything and know they might damage their legitimacy and authority if they make
all too gross of a spectacle. And they're trying to feel out how far they can go as the crowd rages.
A lot of fantasies will have absolute power in them, where the victim is subject to any whim of the tormentors (and that can be exciting
and the executioners know no limits and need fear no repercussions. Obviously in a story of total power and merciless execution it would seem out of place to spare the victims from the humiliation of nudity; it could only happen if there's a reason within the executioner's culture to avoid it, that has nothing to do with mercy (i.e. the public exposure of someone's genitals is considered more polluting to the viewers, than it's considered punishing for the victim)
But it can sometimes make for more unpredictable developments in a game of power and submission if it happens with a kind of implicit negotiation going on.
In the extreme that might be me trading in the last thing I own - the promise of my consent, me being an obedient victim - against a promise of avoiding some other humiliation I'm most afraid of (I would be aware that promise could be broken).
But it all might be more subtle too, and that has its appeal as well.
I find that the most interesting situation of all, precisely because the ordinary things of our daily lives suddenly take a turn for the unusual. I really enjoyed writing a story with just such a scenario, and I hope many of you enjoyed reading it
http://www.cruxforums.com/xf/threads/budget-busting-barb.5911/
Here, on one level we could say Barb's character bargains with Windar's and trades in the humiliation of nudity and punishment, in a private setting, remaining secret, to avoid the greater disaster of 'that mess ending up entirely at her doorstep' and getting into trouble in full public, although none of that would involve nudity, or what followed
On the other hand,
Barb's character might be negotiating with herself, using the cover of coercion as a way to give into her desires...
Forcing someone to strip when they don't want to is shameful, but the shame is 100% on those doing the forcing, not on the person stripping.
A chivalrous notion but it's not how things tend to work out...