Random, we know, but go with us here. In one study, 31 men sniffed 30 scents while researchers measured the blood flow in their penises. Every smell increased flow to some extent, but the one that really got the blood pumping was that lavender-and-pumpkin-pie combo. The second most arousing odor was doughnut plus black licorice. We think we see a trend developing.

MORE: Science-Backed Sexy Tips