Sorry, Suz, but I got to agree with Monk on this one - Fry's limiting his hypothesis to straight women :) This is a valid assumption because of his first sentence (which, considering the rest of his observation, wouldn't make sense if he was taking about lesbians):

"If women liked sex as much as men, there would be straight cruising areas in the way there are gay cruising areas."

Fry's completely correct - straight men really do get a raw deal! :P