where do i (16M) go physically with my gf (16F)?

I, 16M have been dating my gf 16F for 4 months, 5 months in 12 days as of this post. I just want to know where to go from here in terms of physical intimacy. In terms of where we’re at, we have taken things pretty slow and I’m making sure to be so cautious and respectful about what I do, because she’s my first gf (not to quantify it). It took about 2 and a half to nearly 3 months to have our first kiss, and then on our 3 month I told her I love her.

A little while later she went away on this tour for 10 days and we hung out and we caught up with eachother once she returned, during this hangout for the first time we made out. It lasted like a good hour and fifteen minutes and it was honestly such a great experience, since then we have only hung out twice as we have been having to deal with school and exams, but one of those times we made out again. Also might I add, when we had our first kiss I remember her saying in a joking way like “woah we finally kissed” as a joke and I apologised exclaiming I wanted to be respectful, and she said that over 10-15 dates to have a first kiss is more than enough time. So I think she isn’t shy or slow about us physically, and nor am I, I’m willing to do anything but as a rule of thumb I just thought taking it slow would be better AT FIRST.

Anyways I just want opinions on where to go from here, in terms of our physical intimacy and what to do next and possible precautions I may need to keep in mind. TL;DR I 16M am wondering where I go physically with my gf 16F. Thanks 🙂