Roleplaying as the opposite sex isn't pretending to be the opposite sex. At no point are our characters us. It's just playing a female character. Just like playing as Samus doesn't mean you're pretending to be a women.
verb (used with object)
to experiment with or experience (a situation or viewpoint) by playing a role: trainees role-playing management positions.
Sorry I should have said experimenting with being a woman, not pretending, my bad.