Sorry ladies, Usain Bolt's taken ... and his girlfriend is an absolute smoke show!
Bolt is usually pretty quiet about his relationships -- but his rep confirmed the world's fastest man is dating Kasi Bennett ... a fashionista who also rocks the hell out of a carnival bikini.
In fact, the two were spotted kissing out in public during a parade in New Kingston back in April ... and he recently referred to her as his "First Lady" in an Instagram post.
Hail to the chief ...
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