Girls who don't understand that sex isn't just available "on demand" for guys

I added this paragraph to the latest Ms. Slav update:

Ms. Slav also, like a lot of hot girls, doesn't understand that sex isn't just available "on demand" for guys. If she wants sex, she just gets it. Pretty much every straight man she's ever met wants to have sex with her. For 98% of guys, it ain't like that. But for guys, it's often useful to act like it's like that. As I do with Ms. Slav.

Ms. Slav is pretty cavalier about cancelling and rescheduling sex dates (much more so than I am). And that's because it's no big deal to her. As for most hot chicks.

Hot chicks like the idea of being with guys for whom it's also not a big deal. And that's why it can be useful, too, for guys to cultivate a non-monogamous roster of lovers. One girl falls off the rotation? Next one up.