How can my gf and I improve and vary our intimate time together?

It's not like we don't have a good time when we're kissing and all, but I feel like I want something more for us to do that's intimate, but less generic than just kissing, and isn't really sexual in nature. I mean we are fine with a little lack of clothing or acts that are a bit sexually expressive so to speak, but neither of us want sex at this point. We are only 17. Any suggestions would be appreciated. I really want to give her something new, if you know what I'm saying.