But anyone remember the report a couple of decades back about water usage after the US Navy started letting women on ships? Having ladies around made the guys shower more often. Empirically, I can verify that, since getting married, I do tend to shave more often.
She's also discovering she prefers it in other women - as a massage therapist, regardless of how recently they've shaved she'll encounter it all, and it's pretty amazingly irritating stuff.
As a guy who enjoys massages and has hairy extremities: no matter how much oil is used, the hair gets pulled. One of the primary reasons cyclists shave their legs is for better massages.