Model Kristin McCormick (L) kisses adult film actress Tiffany Taylor during a release party for the new issue of “Strip Las Vegas” magazine at the Ghostbar at the Palms Casino Resort July 18, 2006 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

A tourist poses for a picture with the Sphinx at the Pyramids of Giza in Cairo, Egypt, on October 19, 2011. (Reuters/Jamal Saidi)

Russian Supermodel Natalia Vodianova kisses a fellow model on the lips during the Russian Rhapsody Auction dinner at Billingsgate on April 23, 2007 in London, England. (Photo by Chris Jackson/Getty Images)

Rugby fans kiss a fellow spectator wearing a gorilla mask during the Hong Kong Rugby Sevens 2008 on March 28, 2008 in Hong Kong, China. (Photo by MN Chan/Getty Images)

Rachel McCord (L) and Anna Lynne McCord arrive at the 35th Annual People's Choice Awards held at the Shrine Auditorium on January 7, 2009 in Los Angeles, California. (Photo by Michael Buckner/Getty Images for PCA)

Couples participate in a kissing contest in Hefei, Anhui province, China, on February 18, 2012. A total of 63 couples took part in the contest in which men must hold their partners off the ground while kissing, trying to last as long as possible. The winner was awarded a 1-carat diamond ring, local media reported. (Reuters/Stringer)

Benny the Bull, mascot for the Chicago Bulls, kisses a Luvabulls dancer while they perform against the Memphis Grizzlies January 13, 2007 at the United Center in Chicago, Illinois. (Photo by Jonathan Daniel/Getty Images)

Petty Officer 2nd Class Marissa Gaeta (left), assigned to the amphibious dock landing ship USS Oak Hill, kisses her partner Petty Officer 3rd Class Citlalic Snell, following the ship's return to homeport after a three-month deployment in the Caribbean, in Virginia Beach, Virginia, on December 21, 2011. History was made on a Virginia Beach pier on Wednesday when the two women sailors, one just home from 80 days at sea, became what was believed to be the first same-s*x couple to share the Navy's traditional first kiss. (Reuters/U.S. Navy photo by Mass Communication Specialist 2nd Class Joshua Mann)