Probably fruitless search for specific vintage adult book

I am looking for a specific title/book, it was one of those one-hander novels from the 70s, took place in the jungle somewhere like Africa, heroine spent much of her time performing fellatio on local pygmys, she was called “Head-hunter” or some such. Am I the only one on earth who remembers this book? :)

Source: reddit.com/r/eroticliterature/comments/8jepkr/probably_fruitless_search_for_specific_vintage