How Does This Finding Explain Kissing Cousins?

I'm a strong believer that pheromones play a big role in how attracted we are to one another and it makes sense that the way we "process" pheromones through our nose. Certainly there were times I thought I liked someone, only to not like how they smelled. Seriously, take showers guys. (I know it's not that kind of smell the article is talking about.) But one thing is for sure, you can't fake attraction.

What sexual cues do our scents give off? For one thing, we are more likely to be attracted to people whose scent is dissimilar to our own. Family members often share similar chemicals, so our attraction to differing chemical makeup suggests that sexual cues evolved to protect close family members from procreating together.

via Hot Air

Also: It's nice that they named this nerve "O." Those scientists are sure "subtle."