What's the best way to get my girlfriend in the mood?

Yesterday after being stuck at first base for a while I made it to second base thanks some quick thinking on my part. We started making out and I started kissing her on the neck and she totally was turned on but at the same time was holding her self back. Anyways we basically groped each other a lot and I fingered her. So my question is what other ways can I kiss her or touch her to get her in the mood to have ? I know she wants to, and I was literally 1 step away from reaching there. I know kissing her neck really turns her on, so what else can I do?