Yes. Be up front. If she responded negative to your stutter, I suspect it was not to your stutter itself, but your reaction to it (embarrassed, low self-confidence etc). If you can get comfortable with it yourself, she will see that confidence and it won’t make much difference to her. It took me a lot of therapy to get there and I still struggle sometimes, but it’s definitely the way to go. Good luck! (Also good cheesy opening line to disclose stutter is “sometimes I stutter around pretty girls so that might happen tonight” or something like that. It has worked for me in the past ;)