How to ask a lady for DATO over the phone? I know most providers won't discuss services but DATO is all I want.

you want to lick her ass, or you want her to lick yours?  either way, you can search reviews for providers who give and receive rimming in your area.  sometimes the text field on her profile isn't fully accurate, and a lot of ladies are YMMV about rimming you.  so read the details of her reviews as well to get a feel for it.

or you can book with a known enthusiast like me.  or tori valentine.

tongues and asses are amazing combinations.

have you ever tried *69?  it's like 69, but with assholes.  

I'm looking for DATO. I have already picked out the ass I want to lick...I just need to be able to ask her without getting hung up on...

....can't imagine someone having as issue with their ass being licked the whole date.