Yes keep it moving forward. She is cool with what you're doing, and whatever you're doing is working.
If you really like her then you should put effort into a nice evening, nothing crazy but hopefully something you both like, depending on what you talked about. But basics is a place you know is nice for dinner, and then go for a walk, don't spend long there. You'll end up making out again during the walk. And then if you feel like you guys can progress, you should have an excuse ready for going back to yours, eg. you bought some new DVDs. Hopefully there's something back at your place related to something you talked about. At the very least, you can offer to chill back at yours where it's warm/comfy, whatever.
It's good to have the excuse because on the drive back, there's time for her to cool off and start becoming nervous if she's young. If she's experienced and already decided what she wants, she'll just be waiting to get indoors so she can take your clothes off. You have to read this. If she's having second thoughts, you've got a movie or something to do as an excuse for cuddling up together. You can escalate your kino till she decides she wants to keep moving forward, stop/start as neccesary, so she becomes comfortable.
Frankly, even though it seemed like you could have F-closed, since she's young she just may not be "ready" yet, not that night, maybe not for a few nights, and you have to roll with that. Show her you care about her and everything's cool and you're still keen on her, and she'll eventually go "ah what the hell!" and do it.
It is possible to be a little "manipulative" but it's more like playing a game - where you try to escalate things and she starts to protest, so you stop completely and go "ok fine

" but not in a hurt way - when I did this, I just sat back and gave off the vibe that I was stopping completely, and it's your loss, I could just happily watch a movie. It was a POSITIVE, light hearted "ok, your loss!" vibe, not a spiteful one. And I really did feel that way. I think that was the cause of the definition of our sexual relationship for many months - she would always get off on protesting but keep coming back for more. Anyway I felt this was the right road to take with her. She had a bit of "fight" in her which seemed to needed to be treated that way. With a girl who's a lot more sensitive and shy, she might genuinely feel hurt, and you don't want her giving in to you out of guilt. She will just feel even more bad afterwards. Read her body language. If she's more of a sweet and shy girl, things will go a lot better if you're soothing and comforting the entire way. In both cases though, you have to show you're cool with not progressing, I mean really - she really has to believe it - and for that to work, you really have to be ok with not moving forward that night. Think of a movie you want to watch or a video game you want to play, or a side project you're working on. Something that excites you at the moment that you can move onto quickly.