Un'friggin beliveable...
I've actually known (but never dated) more than one girl who subscribed to this bizarre philosophy. A good proportion of the girls who were into "abstinence" basically implemented it as doing everything except vaginal sex.
Does this make sense? Not really. But it is far more common among the girls that claim abstinence than I would have guessed not knowing any better. Incidentally, This predates the Clinton/Monica thing, so I wouldn't blame it on him. I remember one girl telling me she learned it in Catholic school of all places. Go figure.
It's BS, and not worth the read