Question for women. How many dates do you go on before you put out?

I'm just curious. Im on a second date with this girl, but I'm not getting any negative or positive responses. She's no prude either, she gets paid a lot to go on dates with rich guys, but she doesn't have sex with them. I'm poor, and didn't find out about this until our 2nd hangout/date, so am I just like an idiot or something for putting up with her because she's hot? I think I'd treat her different.y if she was ugly. I think I just answered my own question, and I now know I must leave her alone.