Supernatural star Jared Padalecki is set to become a father again.

The hunk's wife, his Tv co-star Genevieve Cortese Padalecki, is pregnant with the couple's second child, according to

Padalecki celebrated his 31st birthday on Friday (19Jul13) at a Comic-Con party in California, where he walked the red carpet with the beauty and draped his hand across her small baby bump for pictures.

The couple married in 2010 and is already parents to 16-month-old son Thomas Colton.