According to an Australian survey, a quarter of men admitted to lying about their feelings and declaring their love during sex. Only 6.1 percent of women said the same.
(Interestingly, both sexes were equal in the amount of people–6.25 percent–who have faked tears during sex, which, WHAT? I don’t even understand why you would ever do that. Isn’t crying during sex a turn-OFF? Are you faking tears to get the other person to want to leave immediately? Oh. Maybe I do get it.)