Would you judge a girl more harshly than a guy for having ?

I wouldn't say I'm promiscuous, but I do feel like I purposefully don't have with certain people because I'm afraid of becoming "that girl". So many people on here are quick to criticize me, and call me a slut, but not guys. Why is that? At least be consistent. If two people are consenting adults and want to have safe , and their religious beliefs do not condemn it, then why shouldn't they do it?