My boyfriend and I are both rave sluts that have each fucked somewhere around 50 people in our lives before going out with each other. The second weekend we hung out, we were dating other people and we fucked a different person in front of the other, after all 4 of us did a lot of sadistic BDSM shit to each other for kicks. Later on, I was single, so I banged out 20 dudes in one of my ho months just to see how many I could get and then got bored and kinda gave up on sex for about 6 months, besides one or two one night stands, until I started hanging out with the guy, who I'd known for about 2 years, more often.
We have been dating for about a year and a half, the sex is amazing, and we never once cheated on each other. Well, I know I didn't and I trust he's being honest. We're starting to get old, fuck all that noise, we just get together and watch comedy, eat and sleep at this point. I have absolutely no desire whatsoever to touch another guy, well, besides maybe Childish Gambino, which my guy not only approves of but would join in if I ever got that lucky.
By some kind of wonderful magic neither of us have any STDs.
Everyone has a past, and they also have their own definition of "sleeping around", and just because she was horny when she was single, doesn't mean she's going to go and cheat on you, she's most likely not gonna go down the ho streets in the neighborhood for some cock to gargle, but if you think she would, why date her? You'll just be paranoid and suspicious and she will hate that. She will hate you for it if you try to accuse her of slutting around when she was just out with her girl friends, looking at shitty expensive make up.
You would be a slut too if you had the looks, charm and the confidence, but trust me that shit gets old after a while, it's nice to have a partner. So don't say anything judgmental if you like her and don't get worried unless she starts being really shady when talking to other dudes, lying about where she's been etc