Funnily enough, like the OP, I also saw her about 18 months ago. Again, like the OP, I thought about a revisit a couple of weeks ago. My availability is very restricted, so I often have to try for a last minute punt when the opportunity unexpectedly arises. I know she generally likes to have a clear advance booking, but I decided to see if she was up for a short notice one. Sent an email and got a polite but kind of terse 'not available'. Like the OP, I had thoroughly enjoyed my last session with her, so I replied saying it was such a shame as I had thoroughly enjoyed our last session, reminding her of the session. She replied with a much friendlier and genuinely enthusiastic suggestion that we get together again soon.
She is definitely a bit paranoid with new clients - seems she had a bad experience with a stalker, which is why her AW location bears no resemblance to the actual in-call location. When I did visit her, the directions she gave were a nightmare.
Agree with pretty much everything OP says, although my recollection was her boobs while tiny, were very responsive. She is no supermodel, but neither is she a total minger. Very slim indeed, but strangely very sexy. And she really does fuck like a pornstar in all holes.
Maybe that's the allure? I'm certainly up for another session if the opportunity arises.
NWG