something from my psych textbook:
Can sexually explicit material have adverse effects? Research indicates that it can. Depictions of women being sexually coerced–and enjoying it–tend to increase the viewers’ acceptance of the false idea that women enjoy rape and tend to increase male viewers’ willingness to hurt women. Images of sexually attractive women and men may also lead people to devalue their own partiners and relationships. After male collegians watch TV or magazine depictions of sexually attractive women, they often find an average woman, or their own girlfriends or wives, less attractive. Viewing X-rated sex films similarily tends to diminish people’s satisfaction with their own sexual partners. Some sex researchers fear that reading or watching erotica may create expectations that few men and women can hope to live up to.