I take it you guys are pretty close if you're cuddling and crying together, not to mention mentioning wanting to kiss....

I say talk about it, tell her if you hadn't already that you're pretty sure you're not 100% straight either and that even though she mentioned it while drunk, you've thought about kissing her too.

A type of girly confession session if you will

Then see what she says....

Best case scenario, you agree to kiss eachother and see if its just curiosity (a safe and friendly experiment for both of you if you will)...

Worst case scenario, she gets uncomfortable and you yell "psych!" and proceed to laugh it off (uncomfortably) and pour yourself a drink...

Why I propose this method (although obviously you tweak it to suit you) is because if you spring a kiss on her, her surprize or shock may come across as rejection (when it may not be) orr things just get uncomfortable and awkward anyway, without much thought into how to make things go back to being not awkweird. Talking gives you a clear red or green light.