There's all kinds of scientific research and studies in the area of scent - some of them focused on what smells turn people on.
The scents for women vary - with lists including Vanilla, Jasmine, Musk, Patchouli, Lavender, Mint and Ylang ylang. Another list said cucumber, licorice, and baby powder have been shown to turn women on, increasing vaginal blood flow by 13 percent.
Pumpkin pie and lavender increase penile blood flow by 11 percent in men. The men's list also includes cinnamon buns, donuts, licorice/anise. I guess guys like food, eh? The way to a man's heart is through his stomach and nose?
Another study found that women love "the smell of gas, pain, printer ink, or leather on a man. While men love "the scent of lipstick, baby lotion or a roast dinner on a women."
Weird, right? I can't see getting turned on by a guy who just exploded a cartridge of printer ink on himself. And gals, dab a little bit of roast beef and mashed potatoes right behind the ears.
What it all says to me is that scent is a pretty variable thing for everybody - and it's usually affiliated with memories. Pleasant and not so pleasant. That's one of the really fun things about my job - seeing how differently people react to the soap scents I've got. And I have definitely seen some folks get pretty turned on by a bar of soap - sniffing it so deeply, over and over, that they just can't put it down and end up taking it home to sniff up some more and enjoy in private :)