Jason Biggs has announced he is expecting his first child with wife Jenny Mollen.
Jason told Chelsea their happy news when she brought out a photo that Jenny had sent of herself, remarking: "Her breasts look really engorged."
Jason replied: "Her breasts are very big these days. Would you like to know why? Because I put a baby in her belly!"
The dad-to-be then pointed at his crotch area, joking: "It works!"
A few hours after filming, Jason reposted a baby scan photo his wife had uploaded to her Instagram account, captioned: "My new assistant is so f***ing lazy!"
The couple met on the set of My Best Friend's Girl and married in April 2008.
Jason is currently starring in prison TV series Orange Is The New Black.