I had my first visit with a provider last week. For obvious reasons I wasn’t thinking about asking her to be a reference at the time. Would it be cool to contact her and ask her now? I’m trying to get P411 approval and need two references.
 In a related question, I will be in Las Vegas 5/31-6/2. Looking for an appointment with a curvy lady that will also provide a reference. Incall preferably but Outcall may be a possibility.

Most of us girls are more than happy to provide a reference for another provider!!! Or for p411 approval.  

and curves in all the right places!  
To answer your first question: If you made a good impression on your first provider she should be eager to help you with a reference. If she is on P-411 you should feel free to ask her to vouch for you there.  
And your followup: I am P5757 on P-411 and happy to help once we've met.

Just take a look at my reviews and get a hold of me

Thank you for the information ladies.. Looks like I have a decision to make.

I remember 1st getting into this game long, long ago...  was not entirely easy because the ladies worth pursuing have to look out for their safety which is entirely understandable.

I'm available  
I'm curvy provider  
Great reviews  
I'm in Vegas Available till July 12th in Vegas