I think they don't see the reality in that. They don't see the romance. That is why I would say they would rather watch a romantic movie. Also, it is more natural for men, and I would say that they have the NEED. But of course, everybody is so different. The other reason that occurs to me is maybe that they are not confident in themselves. They are afraid of what they could see and then compare themselves with the mattress actresses.

Yes, as Klára implies, women [more 'passive' role] tend to look for more depth in a relationship - i.e., for more than just the physical aspects associated with it. What they value, is not conveyed by pornographic images.

A lot of men [more 'active' role] focus primarily on its physical side - and that can be stimulated by pornography.

Thanks to you both for commenting. I agree that women focus on upper body lovemaking (kissing and caressing) and men focus on genital stimulation. This is evidence that women are not aroused and, therefore, do not orgasm with a lover. Women dislike eroticism because they don't respond to it positively as men do. No one can name even one female erotic turn-on. Most women never discover orgasm by using explicit fantasies when masturbating alone. They are horrified by any mention of clitoral stimulation and erotic fantasies. They associate explicit genital stimulation and erotic stimuli with men's sexuality. They prefer to interpret their sexual experiences in romantic terms as a man's passionate love for them rather than as the crude sexual urges that men experience. It is however useful for each sex to understand that the opposite sex experiences sexual relationships quite differently. Women look for emotional rewards while men look for erotic rewards.