I've never been to a party like that, but I know they're legit. My cousin's son just turned 18, and they had a female stripper come to his BD party. If girl dancers can strip and dance for all male audiences, I'm sure there are male strippers who dance for female parties.
Pretty sure it happens quite a bit!
There is a strip club for women in my city and the bouncers/security has to spend a lot more time dealing with women patrons trying to touch and feel up the male dancers than at the strip clubs for men.
The club only allows men in if they are accompanied by a female. My wife and l with other couples have patronized the club. It is funny that women are much more vocal, much louder cheering, yelling, applauding than men patrons in their strip clubs.
There are private stripper catering businesses that hire out male dancers to women for private parties such as bachelorette parties. You can find these businesses in every major city in the USA. They usually also provide female dancers for men's private parties.