I worked at a feminist, progressive, vegan, blah blah blah independent bookstore years back in my 20s. A lot like the place in Portlandia if anyone has seen that show. Another guy who started there about a year after I did was about 30 years old then and madly into fucking teenage girls, I mean 15-17 year olds.
I knew what he'd done when these random girls kept coming into the store, looking around vaguely like they were shopping, and then coming up and directly asking if Steve (not his name) was there. No reason these girls would look for him for any normal reason, he was a guy who worked in the shipping area 99% of time and had no customer contact. Sounds like a creep but was RP as fuck long before I was familiarized with any of these ideas.
I asked him once, buddy buddy, Steve are you fucking these girls? He said yeah, he was. Came up later and begged me not to tell. (One lesson here, if you fuck younger women or girls, leave them on good terms so they don't do shit like this and wander in looking for some non-existent connection with you the next day or week).
I was mixed on turning him in until two of those girls approached me a few days later at a party and did the same to me they did to him--these girls knew how to play. I didn't fall for any of it, no underage sex for me, I was never into girls that young except when I was that young, and even then not that much. I remember one girl working there waiting until she turned 18 and then coming in and proudly telling me, sure we'd be together pretty quickly after that. I could have fucked Steve over good. But I decided not to turn him in.
Years go by (13 or so now), I move on to a much better job and eventually a new career. Steve remains at the feminist, lesbian, eco-vigilante independent bookstore and now leads various SJW groups that meet there in campaigning for the usual shit those types of groups campaign for. He's some kind of community organizer and has become both well-known in the community and a part owner of the joint.
Recently he was quoted in the community alt-weekly paper talking about protecting women from predators and how he was strongly in favor of the yes-means-yes standard being implemented at the university (we're in a college town). I've thought seriously about going by and just letting him know I haven't forgotten him. I'm an attorney now (I'm a lawyer but not your lawyer, this isn't legal advice, etc.) and I know he probably wouldn't be legally found guilty of anything, but I wouldn't have to prove anything, just the implication would ruin him. But I won't do it.
What's the point of my old guy ramblings? Don't leave your legal and personal well-being in the hands of someone like Steve the warrior for women's rights, because these guys have no real values at all. Most just want what they want, kind of like women in a way. Many crusading prosecutors aren't much different when it comes to this stuff, still white knights, wearing different uniforms. But if you do something dumb and sleep with the wrong girl, read this post again, see an attorney if necessary and do your best to protect yourself.