Jennifer Garner Exposes Ben Affleck's 'Junk' on Jimmy Kimmel Live [VIDEO]

Jennifer Garner revealed a funny story about Affleck's private part on the Jimmy Kimmel Live show Thursday (August 16, 2012).

Garner and Affleck have 3 children together including daughters Violet and Seraphina, and baby Samuel who joined the family in February 2012. After Samuel came along, the young girls' were naturally curious about the new body part on Samuel.

Garner explained that there was one day when Ben asked their two daughters to clean their rooms and received a shocking yet hilarious response.

Affleck said to his daughters, "There's a lot of junk in there, let's clean up this junk." Young Seraphina responded to him, "You're the one with junk, Dad — your penis!"

Affleck later asked Garner, "'You're teaching our children to say 'junk'?" Garner defended herself, "How many times a day can you say 'penis'? There's a limit!"

The two Hollywood superstars do face the same problems all normal families face. And it looks like they're having a good time raising their children.