The pair then become an official item in 2009 and have since had two children together.
Messi's contract at the Nou Camp runs out next year.
Antonella has stood by her man's side throughout the World Cup, proudly supporting him as he was awarded the Golden Ball for the 2014 tournament's best player.
The 32-year-old was an overwhelming favourite with bookmakers after a as the recipient of the award in the hours prior to the ceremony.
Well a Your girlfriend may wanna get her bikini out if her ass! The current holder of the title is Suzy Cortez, a Brazilian bombshell fond of posing near-naked in Barcelona get-up.