3. Porn. You're thinking, "What, how can that be???" The occasional skin flick is probably no big thing, but experts say men who frequently view porn may develop unrealistic expectations of women's appearance and behavior, have difficulty forming and sustaining relationships and feeling sexually satisfied.
4. Fruity, or foody, scents. If you think you're going to get his motor running with that cotton candy or creme brulee body cream, think again. According to a scent test done by editors at Cosmopolitan, sugary-smelling, fruity or lollipop-ish perfumes make guys think of the candy store or the kitchen, not the bedroom. The better pick: Eau de Dove soap. Guys seem to prefer to steam it up with gals who smell like they came straight from a sudsy shower. 5 Fragrances That Make Men Drool
5. Soy. He might think he's being healthy—and saving you the anguish of dealing with the byproducts of his lactose intolerance!—when he chooses soy milk for his protein shake, but if you know what's good for your sex life, you'll tell him to step away from the soy! The isoflavones in the plant are similar to estrogens in the body, which can have a libido-quashing effect on men. In fact, there's a rumor that monks actually eat soy to stave off sexual urges.