The intimate photos show the star curled up in bed with the student at 7:00am local time on Sunday. Speaking to local newspaper Extra, Duarte said that Bolt sent security over to get her attention, Daily Mail reports.
She said she hadn't realized that she was with a famous athlete and described their nocturnal encounter as 'normal' and 'not a big deal'. Duarte wasn't the only woman to catch Bolt's eye on Saturday night - a video posted to Twitter showed him twerking enthusiastically with another local girl during his evening out.
He sang and danced just hours after earning three Olympic gold medals. Bolt thus completed a triple triple, as he also won the 100 meters, the 200 meters and the 4x100-meter relay in 2008 in Beijing and 2012 in London.
Meanwhile his sister had just revealed that Bolt had a long-term girlfriend - 26-year-old Kasi Bennett. Bolt and Bennett have been dating for more than two years and were likely to get engaged soon, according to Christine Bolt-Hylton.
But Bennett shared a cryptic tweet on Sunday. Someone commented on the world 'discovering' Bolt's girlfriend, saying Bennett was 'hot'.
Bennett replied: 'I wish there was no discovery, but thank you so much. That's really sweet of you.'
Bolt made an early exit from Rio Sunday night - departing a day earlier than planned and missing the Closing Ceremony entirely.