Friend recently got back from staying a hostel overseas. His bunkmate was a Japanese guy. Japanese guy, lacking a good paying gig, had just interviewed to be a fluffer for webcam girls.

What is a webcam girl fluffer? It's a guy, paid by the webcam company, who poses as a paying customer and flatters multiple camwhores simultaneously, so that they'll stay "in the mood" and online, ready for a real paying customer.

Literally, female porn stars need a guy providing validation and ego-stroking exactly as male porn stars need a chick for handies and BJs.

I can't think of a more succinct example of the difference between the sexes' sexuality.