Oh... Well... Maybe it was a dare? lol idk! Just saying that most people who "appear" sluty in Hollywood aren't actual sluts, its all about money. So in a sense they use their bodies to make money so she could be a prostitute. haha
Who really cares though? They are just like the popular kids school... no matter what they do, it going to be judged in a good view and a bad view. If she wants to act sluty or be a slut, its her body. I was judged for not having relationships in high school & being a "prude" because I didn't want to sleep around or make out with every other guy in my school. I wasn't a slut but I still was judged. Its just the way the world is. Everyone thinks their opinion is the right one and the only one that matters.
Honestly, the biggest wide spread problem in this world is self-centeredness. Think about it.