Bodog Beat

Jenny from the Block will attempt to drag her gigantic ass around the block. (Courtesy of efrain garayua at Flickr.com)

After giving birth to twins six months ago, Jennifer Lopez now has some Olympic aspirations of her own. The singer/dancer/actress is reportedly training for her first triathlon.

The 39-year-old is apparently getting into shape with Self magazine editor-in-chief Lucy Danzinger.

"You have to start slow and give yourself time," Lopez said during an interview from New York's Central Park with Good Morning America. "I'm always challenging myself and seeing what I can do."

While Lopez claims that she is a "good athlete," she is worried about one part of the triathlon. "Swimming is a killer," she said. "I'm not going to lie. But I'm a good athlete. My stamina, I can get that up there if I really try."

Lopez is reportedly training for a triathlon that will take place in Malibu on Sept. 14. With less than a month to go, Lopez is doing the triathlon not just for health and personal reasons, but she is raising money for Children's Hospital Los Angeles as well.

Fans can reportedly donate money and follow Lopez's progresses on Self magazine's website.

Lopez says that she is determined to finish the race even is she "has to crawl across that finish line."