I want to clear up my "position" on the issues that arose in this thread. I never met any of the women known as Tina Small or Vicky Little. They were models who worked in Britain. There were several of them. The first time I saw photos of a model known as "Tina Small" was 1974 or 75 in discussing an issue with a client. I believe the magazine was Fling, but I am not certain. Several issues of Fling had spreads of at least two models with that name. The May, 1981, cover I posted earlier is, I believe, a different model.
All of the models used rubber prostheses, and I believe John Xavier was the agent for all of them. What I know of Xavier I heard from doggo.
The prostheses were very good, very well-done, and very expensive; it is not only possible, but likely, that the same prostheses were worn by different models over the years. Just like the Farong Ding-Dong site, the whole prosthetic-boob episode was an exaltation of fantasy, and should be remembered as such.
Here is a bad scan of a page from the second or third Tina in Fling: