Kissed my bff

So last weekend my friend and I both were really drunk and we started to touch. We usually grab each other over clothes when we get super drunk but this time she kissed me and continued to kiss my breasts she did not finger me but she was able to feel around. The next day it was all I could think about and she did not want to talk about it at all. Now I’m just wondering what happened and I can’t ask her anything 😕 I don’t want this to change our friendship we have a great friendship. Should I ignore it and move on to keep the relationship or talk about it? I don’t want to start anything romantic with her she’s great but I prefer her as a friend who likes to kiss me lol