I always love these threads that ask questions that make it sound like we are speaking of aliens and not human beings. Especially when it is essentially "Does the gender who is discouraged from engaging in violence normally, prefer to engage in such violence in a state of undress that is equally discouraged? " Sounds more like wishful thinking. Not natural at all, for either gender I would think, Otherwise all this body armor we have developed over the years seems a bit silly..
Men and women are different, emotionally as well as physically. If they weren't - if women walked, talked, thought and fought like men, the whole catfight fetish scene, including this forum, would die overnight.
That said, the answer to the OP's question depends on the type of fight we are talking about. If it happens in public, to settle some issue or other, then no, it wouldn't be natural for the women to fight nude.
If it was a private fight, and they were doing it at least partly as a turn on - for themselves, the spectators, or both - then yes, it would be natural for them to fight nude, or with a minimum of clothing, in order to heighten the eroticism of the situation.
