I've never understood this. Why is it that phobic men watch s eagerly, but are repulsed by gay men?

Because many straight men believe that if they see two women getting it on together the women will get each other worked up and then ask *any* man present to help satisfy them. They don't get the concept that '' means not interested in men. They just believe that a woman is incapable of satisfying another woman so they will have to find a man to finish the job for both of them.