What should you do from here on out?

me and this girl i like im pretty sure she likes me back. have been going on dates and started kissing and what not. a few days ago we went to my house to watch a movie when we were done we started making out, i started to feel her chest which was fine. after that i tried to go down under, to which she replied that it was to fast! after that we layed there a few hours kissing and cuddling i was being real smooth about it.

How do i do from here on out?