British Formula One driver Jenson Button and his long-term model girlfriend Jessica Michibata have become engaged. The Japanese-born Michibata could be seen sporting a diamond engagement ring as she kept tabs on her fiance during Thursday's pre-season testing at Bahrain's Sakhir circuit. McLaren posted a message on their twitter page saying: "Huge congrats to @JensonButton and @jessybondgirl on their engagement! #attaboy". And Button's new teammate, Kevin Magnussen tweeted: "Wow! Well done to @JensonButton & @jessybondgirl on your engagement!" The pair met over five years ago with Button, whose father John died suddenly of a heart attack aged 70 in January, telling the BBC that he had proposed on Valentine's Day. Michibita, whose mother is Japanese and father half-Spanish, was born in Fukui near Kyoto. Source: AFP