The Sin Sity Sisters of Perpetual Indulgence are a Las Vegas chapter of men who dress outrageously as nuns in drag and do charity work to promote HIV/AIDs awareness. According to the Las Vegas Weekly they "The Las Vegas chapter of the Sisters — a vocational order of mostly male nuns in drag, with 30 chapters and missions around the country — take no government money and vow to help those in need, without judgment. Since 2005, they have become increasingly visible in the Vegas community — doing "bar ministry," where they hand out condoms and promote safer sex, attending HIV/AIDS events or fundraisers and generating awareness at arts events." (https://lasvegasweekly.com/news/2010/mar/25/sisters-acts/#/0) You can also read more about them on their website: http://sinsitysisters.org/