Sarah Michelle Gellar expecting second child

(CBS News) Sarah Michelle Gellar and Freddie Prinze Jr. are expanding their family.

The "Ringer" actress is pregnant with the couple's second child, Us Weekly reports.

Pictures: Celebrity baby bumps

"She and Freddie are thrilled," a friend of the pair told the magazine. "They're amazing parents."

Gellar, 35, and Prinze, 36, married in 2002. They welcomed their first child, daughter Charlotte Grace, in September 2009.

"Ringer" ended its first season earlier this month. The CW network has not yet said whether it plans to renew the drama, in which Gellar plays twins.