Lance Armstrong has super cancer-surviving skills, super lung capacity and, reportedly, super sperm.

The multiple-time Tour de France champion is expecting a fourth child with random girlfriend Anna Hansen.

"Lance and Anna have been quietly dating since July," a source told Perez Hilton. "They met through Lance's charity work. Anna works at a non-profit for cancer survivors."

Lance Armstrong and Anna Hansen are expecting a child together.

Armstrong, of course, has been linked with celebrities such as Sheryl Crow, Ashley Olsen and Kate Hudson.

He and Hansen are said to be "thrilled" with the baby news.