From the Chicago Tribune:

Funny men give their partners more orgasms, according to a study referenced in Psychology Today, and their partners initiate sex more frequently. (Probably because of all the orgasms.)

Researchers at the University at Albany surveyed female undergraduate students in committed heterosexual relationships about their sexual behavior, prior sexual experience, feelings toward their partners and the physical and psychological features of their partners.

"Their partner's sense of humor … predicted women's propensity to initiate sex, how often they had sex, and it enhanced their orgasm frequency in comparison with other partners," write the authors.

 
There is nothing less funny than a guy trying to be funny. There is nothing funnier than a guy who is funny without trying to be. I'd go for the man with a great sense of humor over a pretty boy any day. When we're so old we can't see each other, we can still laugh until we pee...

"Those in relationships with more humorous partners reported he was more popular, intelligent, a better leader and more creative," they continued. "Participants with humorous partners reported initiating sex more often, and having more frequent intercourse in general. They also reported feeling more protected and committed to their partner."

Will Ferrell's marriage is suddenly very intriguing.

"It is important to note that the relationships found in this study, while only correlational, are consistent with what we know about the allure of humor," psychologist and anthropologist Gil Greengross writes in Psychology Today.

"Humor is sexy," Greengross notes earlier in his piece. "People with a great sense of humor are attractive as mates and enjoy better mating success. This is true especially for men who use humor to attract mates, as humor is one of the most desired traits by women when choosing a mate."

And apparently it pays off.