Jady Duarte, 20, posted pictures to WhatsApp which seem to show the Jamaican sprint king, who has a long-term girlfriend, cuddling and kissing her.
Usain Bolt appears to hug 20-year-old student Jady Duarte from behind in one snap. Bolt appears to kiss Jady Duarte on the cheek in another picture despite it being revealed by the Sun on Sunday he has a girlfriend.
In one photo a topless Bolt appears to hug Jady, wearing a white vest, from behind while the other looks like he is kissing her on the cheek.
The pictures were shared by the Brazilian student and have appeared on several news outlets in her home country including El Globo.
Bolt turned 30 on Sunday and celebrated by partying until the early hours of the morning at All In, a club in the Barra de Tijuca suburb of Rio.
The Jamaican sprinter wrote himself into the history books by winning the triple-triple in Rio, taking gold in the 100-meter, 200-meter and 4x100-meter relay.
And throughout his post-Games celebrations Bolt, who The Sun on Sunday revealed has a girlfriend of two years, was recorded dancing and grinding on fellow party revellers at the De Bracos Albertas club.
But Duarte, who was also at the Rio hotspot, has since admitted she is "dying of shame" after her pictures went viral.
Usain Bolt’s main squeeze back home will be upset — but won’t think he crossed the line for a series of post-Olympics romps in Rio, the track superstar’s sister predicted.
Christine Bolt-Hylton, 32, defended Bolt for celebrating his 30th birthday by making out with a brunette, twerking with another and then vaulting into bed with a third — who posted racy images of their tryst online.
“I’m sure Kasi will be used to it by now. She is used to seeing pictures like this,” Bolt-Hylton said of Kasi Bennett, the star’s Jamaican girlfriend of two years whom she believes he’ll marry.
“People ask for pictures with him and he is always willing to have pictures. She is used to him being in the public domain,” she said, the Daily Mail reported.
Brazilian beauty Jady Duarte, 20, shared images over the WhatsApp chat app of herself canoodling with Bolt in his Olympic Village room.
“I don’t think anything happened between him and the Brazilian girl,” Bolt-Hylton added. “He loves Kasi too much to jeopardize the relationship. I’m looking at the pictures and it doesn’t look like he was doing anything with her.”
Asked if Bennett will be upset, Bolt-Hylton said: “The pictures are of a young girl. I know she will be upset. But she will talk to him and I know they can work their difficulties out.
“Usain doesn’t believe in cheating. … He has never done this before as far as I know,” she added. “When he was much younger he was popular with the girls but from when they have been together, he hasn’t done anything like that.”
Bolt should still apologize to Bennett for the bedroom pictures with Duarte, his sister said — adding that “Kasi was definitely OK” with the pictures that emerged from the private party at All In, a club in the Barra de Tijuca suburb of Rio de Janeiro.
Adding to the embarrassment, it emerged that Duarte was the widow of a Rio drug lord, Douglas Donato Pereira, known as Diná Terror, with whom she had two children.