Transforming? Aren't you already there? How many PWs have commented as such? I don't think 'Nasty' can be connoted into a positive like ghetto old school 'Bad'. I guess one could reference Vanity 6's "Nasty Girl" as a positive use, but I don't believe the phrase "nasty pussy" or "nasty dick" was ever used in any positive context whether as a description or proper noun.