in http://groups.yahoo.com/group/OnaniaSupport/ a masturbator wrote:
Some of my best climaxes/orgasms have been the result of manual
manipulation of my penis along with anal stimulation and face-sitting.
An accomplished fricatrice is/was a prostitute or woman (in the past,
usually found outside of sexually restrictive Judeo-Christian-Muslim
Western culture) skilled in bringing a man to orgasm using her hands
was paid more than others who used oral (a fellatrice) and vaginal
talents. So, historically, giving a “handjob” was the preferred
method for sexual gratification and a woman skilled in this was more
highly paid.