I had a very similar experience. First time there. Tried to convince me for four hands which I declined. Provider said her name was Inga which I asked her again since it seemed like an odd oriental name, but seems to have a very similar body to the lady you saw. I got the same prostate massage and before I could get her to stop I left my juices underneath me. Not a great finish as I would have preferred to have done so on my back.
Seemed to be an extremely beautiful lady who I hope to see once the masks, and clothes, come off!