Even a society accustomed to prying eyes may get a bit of a jolt out of "The Sexes II," another in the "Body Human" series of entertaining medical specials, Sunday night at 10 on Channel 9.

The program, which CBS will precede with the by now meaningless parental advisory, not only eavesdrops endlessly on a couple undergoing therapy for sexual dysfunction, but also, through the use of a teensyweensy (one hopes) microscopic camera, takes an interior tour of male and female genitalia.

"Sexes II" is so titled not because there are two sexes, at least count, but because this is a sequel to another report on the sexes seen last year. The prime Sunday time slot guarantees this program a huge audience, even though it is inferior to most of the "Body Human" specials and at times as hootably florid as a sex education film in junior high.

"Rick" and "Eileen," a married couple who haven't had sex with one another since 1974 (ahem), are seen bickering in the kitchen (he seems to play solitaire a lot) and, later, attending sex therapy sessions in New York. pExercises are part of the therapy; at one point Rick notes of one of these that "after awhile my back hurt, so I stopped."

Ah yes, it happens to everyone.

Intercut with this and a mushy case study of a young couple getting married (reenacted scenes are not so identified) is medical footage of wriggling sperm and the process of ovulation, and narrator Alexander Scourby is required by the Louis H. Gorfain script to do lots of awe-struck bravos about how "wondrous" it all is.

When the camera shows and the narrator explains some of the physiogonomy of love -- how our pupils dilate when we see someone we cherish or desire -- the program is neatly illustrative. But the sex therapy sessions, conducted by "John" and "Dagmar," can't halp being embarrassing, and the point of the therapy appears to be getting the couple to stop fighting with one another and start fighting with the therapists.

The program also has more of a tendency toward old or contested sexual stereotypes than one would expect of something doctor-approved (Thomas E. Fuisz, M.D.), as when women's sexual fantasies are said to always find them in the role of "willing victim." A balad sung at a nightclub, we are told, becomes "a highly charged scenario" and "an ancient mating call" to the women who hear it.

At times "The Body Human" becomes The Body Hooey.