While you were growing up, you probably played kickball a couple of times in gym class. But kickball isn't just a children's playground game anymore.

The World Adult Kickball Association started its first league 10 years ago in Washington, D.C. Now kickball leagues are popping up in most major cities across the country.

You don't have to be too athletic, just be willing to relive your childhood. Many young professionals are turning out in droves to do just that.

"It brings me back to my childhood," Sharon Sulami said.

"Everybody who first hears about it thinks it's ridiculous - they're like, 'Kickball? What are you talking about?'" said Lori Shenker, who plays for the Texas Lightning League.

"I love it! I look forward to it every week," said Leah Franks.

"It's a highly competitive sport, as you know. Got to limber up, get loose, get your mind right," Jacob Grossman explained.

Kickball leagues typically have about 10 teams. But competition isn't the main focus of the leagues. The sport is meant to help young professionals meet and become acquainted other people living in their area.