I think the description misses the most important part that would make all the difference: what's the emotional temperature of the scene? If she's excited, happy and enthusiastic I can see it all playing out wonderfully. If she's "weird" and I get the sense that she's not really in the role but is trying to work something out, I'd be more circumspect.
Let's turn up the heat, since it wouldn't be a big deal to go out in the big anonymous world -- what if she's done up like that and wants to go to your folks' place and come out to them? Now you're not facing the scrutiny of strangers, you're facing the scrutiny of people who know your past and will be in your future. Does that change the dynamic?
