Quote:
Girls faking it will tend to dislike the sex and seem non-horny most of the time.
Or if they are on Birth Control or whatever and the moment you cum they are done with the sex? The sex was bad. (Not always true, if they actually came right when you did, and are too tired for another orgasm)
If you are good they tend to want sex a whole lot more. They'll keep riding when you're done as long as you are still hard. Also if they still say you are good after the break up even if you were an asshole....

This is pretty accurate. Also, don't pressure for the orgasm, if she's thinking she needs to have one she's going to find it harder to relax and have one. Women in their mid to late 20's tend to cum very easily and also can't be fucked faking it because they know what to do with themselves and are generally more confident.