Is this Mom's Bernice place?
It is, that number is from one of the ladies I know there.
Although that price for FS is lower than expected. And the "pay whatever you like" is dramatically uncharacteristic of the ladies there.
Either TC is super charming, has a huge (or otherwise wonderful looking) dick, or this is a relatively new lady to the shop and doesn't realize she's suppose to demand as high a price as possible.
I would suggest to TC seeing her again soon to lock in that price. If she's new, between seeing more customers and when the other girls tell her she can charge more... she's going to up her rates. If you see her (at this current price) once or twice more over the next month or so she'll remember you as the guy who expects to pay that amount. Even if down the line you have to negotiate, at least you'll be starting from a baseline of what you're paying now.
Just my two cents, having gone there too much.