There is no such thing as a slut. People like sex, and their life choices are none of your business, so please don't be rude.
It's upsetting to me how much we shame others for this. A person can have as many partners as they please, as long as it's done safely, is consensual and nobody gets hurt. Sex on its own is not a binding contract. Sometimes, it's just for fun.
Listening to: Happy Music