Desiree and Chelsey Lindsay
Nikki and Brie Bella
Kristina and Karissa Shannon
Hugh Hefner's exes.
Nicole and Natalie Garza
Wrigley's "Doublemint Twins."
Kate and Anne Madsen
"The Twin City models."
Mariana and Camila Dávalos
South American TV actresses hailing from Medellin, Colombia.
Tonya and Rea French
British glamour models known as "The Essex Twins."
Hailey and Sierra Partridge
The Serena and Venus Williams of the professional surfing circuit.
Elizabeth and Marcela Montoya
Two bombshell Colombian models.
Bia and Branca Feres
Models and synchronized swimmers from Brazil.
Jenna and Barbara Bush. Just because.
Who's your favorite? Sound Off in the comments...