Smart move. It is difficult to have a crazy sex life with a wife or live in girlfriend because you have to face them the next day. I imagine that it's pretty difficult discussing an article in The Wall Street Journal, eating oatmeal and drinking coffee, with the women that you did disgusting carnal shit with just a few hours before. 
That's true, i typically try to date a girl for 2-3 months and then move on. Some last longer than that. But they have to understand a few rules like no living together, no meeting the family and i have zero interest in marriage. I'm not on social media and don't want pics of me posted there.
Most women are ok with this until about month 3 and that's when most of the time we break up. Or they start to try and withhold sex and that's not happening either. I tell them straight up about how sexually active we need to be.
They just have to be on board with the way i am. I'm very nice to them and treat them well. But the first sign of drama i'm done. I don't degrade them or anything, i play prince charming at all times. I'm just good at getting women to open up their inner slut in bed. I've had a lot of practice.
With online dating it is so easy to hookup if you know what to say and how to act, it's a game. But i'll admit most girls i hook up with are 6's or 7's with the occasional 8 mixed in.
My current GF and i have been together for almost a year. Only because she is very laid back and zero drama. But i know it's not going to last, she has been pushing to live together, which will not happen. Also talks about marriage a lot.
I'll be honest, sometimes after we drink a bit and have freaky sex, we wake up the next morning and look at each other a little weird. Mainly watching her pickup all her toys from all over the bedroom. I left a mark on her ass from spanking her, one of her girlfriends saw it when they were changing at the gym.
We were at dinner with some of her friends and their husbands a few months back. One of the friends mentioned anal sex and they all had these disgusted looks on their faces. My GF was blushing and trying not to make eye contact with anyone for a few minutes.