So I went on a first date with a girl, she showed up 30 minutes late but explained that she was trying to get here on time but because of traffic she didn't she also texted me 3x telling me she's on the way, so I waited, she apologized several times during the date for being late so I let it go, mistake?

Showed up, and she found me talking to two beautiful girls, just shooting the shit while I wait. I then said bye to the girls and met up with her. She did something that annoyed me a bit but I let is slide (your opinion?), she expected me to pay for the drinks. Usually I pay anyway because I'm the one who asker her out, but most of the girls that I've dated have at least offered to pay, this one didn't.

I wanted to know quickly if this was going anywhere, so 10 minutes into the date I grabbed her and started making out with her. Very receptive, cool. We bar hopped where I paid again and then I drove her home. Before I drove her home I told her to sit in my lap in the car and we had sex in the car (I live at home, she lives at home).

Now tomorrow I'm going over to her house to bang her while her parents are at work. But she wants to go to the zoo afterwards, I don't mind but I do not want to pay $70 for two tickets and parking, I want her to pay her share. How would you guys handle it? I'd like to keep her as a fuck buddy, nothing more, so what's the best way to approach it?