Model Nailah Dillard met Bolt at an athletics gala in late 2013 and enjoyed a casual relationship with the 30-year-old for the next few years.
Nailah, 27, says she had no idea he was in a relationship with his 'First Lady' Kasi Bennett, until she read one of his interviews.
Speaking about his wild celebrations since returning from Rio, she said: "I guess he thinks that’s what he deserves right now because he’s the fastest man in the world.”
The model added: “You are sleeping with all these random women. I hope you’re protecting yourself.”
“I thought it was an odd and cheeky thing to ask," she added to the newspaper.
The aspiring actress also revealed rhat a few weeks after they met he took her to a strip club as well as enjoying a number of other boozy nights out.
She said: “We liked each other. We were attracted to each other. He has a high sex drive. I was the first American girl that he ever dated.”
Nailah says Usain isn't monogamous and believes she was with him when he was also with his current girlfriend.