Number one- you can enjoy sex without being in a relationship just fine. Just respect hygiene rules, be safe, be smart, be discreet for pete's sake. No one says it's wrong to love having sex when you're not in love. Nothing's wrong with being laid!
Personally, I use the term "slut" (yes everyone says it) to describe women(or girls, or teenagers) with little or no self respect. These are girls who take pride in calling THEMSELVES these things, who like sleeping with anyone- dirty or clean- just for kicks and giggles. They sleep with people to end friendships with people they don't like anymore, they betray and hurt people on purpose. These are sluts. People on a pole, not sluts. People with their asses hanging out of their pants (maybe need a reality check) but not sluts.
i'm a 17 year old girl, and this is what I think.
Respect yourself, your partners, yours and their health, and yours and their right to privacy- and you aren't a slut.
You're a sexual deviant.