Lolo Jones says remaining a virgin is harder than training for Olympics (VIDEO)

In an interview with HBO's "Real Sports," Olympic silver medalist Lolo Jones said saving herself for marriage has been harder than training for two Summer Games.

[Photos: U.S. hurdler Lolo Jones]

The 29-year-old American hurdling star recently revealed on Twitter that she was a virgin. She told Mary Carillo that it's been a difficult road.

If you have sex you run faster? Maybe that's why Antonio Cromartie is so speedy.

Jones narrowly missed out on a gold in Beijing when she clipped the final hurdle and stumbled across the finish line. She is expected to be one of the favorites in the upcoming London Games.

"Real Sports" airs Tuesday, May 22 at 10 p.m. ET/PT on HBO.

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