If you sleep with her too quick, the odds she sees you again go down. Want to raise them up? Re-seduce her once she's dressed and on her way out before you let her go.
If you do fast pickups, where you're sleeping with women very soon after meeting them, you'll run into a certain issue. It won't be much of an issue until you want to hang onto a woman. Then you have one you decide you'd like to see again, and up it pops.
The issue is that no matter how great a guy you are, when you are shagging women very fast, by default a lot of women may not want to see you again.
A woman may feel guilty about having slept with you so fast: "I'm not like that, I don't know why I had sex with him so quick," and this can make her not want to see you again.
Or maybe she enjoyed it, but she completely writes you off as a random sexy rogue (fuckboy) and has no desire to see you further.
None of this is an issue when a one-night stand is all you're worried about.
But it becomes an issue when you lay a girl you'd like to keep, then can't get her back out again.
However, there is one unique little tactic I've devised over the years that dramatically boosts your ability to convert a fast-lay into a girl who'll come to see you again.
Before I tell you about it, you should understand a few things about how people make decisions, first (and actually, I am going to give you a bonus tactic too... so really it's two tactics here).