THE SCIENCE OF SLEEPOVERS: “The booty call relationship gives the guy easy access to sex, and gives the woman a steady partner.”

UPDATE: A reader emails: “My wife and I just read the abstract on booty calls and had a good chuckle. We were each others booty call for 7 years. We got married in Costa Rica on February 26 and are celebrating with a party tomorrow, not as extravagant as a Clinton wedding but a nice party none the less. In our humble opinion, our booty call made for a solid foundation for a great relationship.”