Lisa Vanderpump's husband, Ken Todd, has a "secret" ex-wife that quietly helped raise the son he claimed he raised alone.

Pamela Todd has been revealed to be the mother of Vanderpump's stepson Warren Todd, who Ken claimed on the reality show he "brought up on his own."

"Warren is a product of my first marriage which didn't last very long," Ken said on The Real Housewives of Beverly Hills, which finished airing its third season on Monday. "I had total custody of him from the age of two."

Pamela's Facebook account, however, provides a different story. The former model and James Bond movie actress - who wed Ken in her teens as a "child bride" and ended their marriage after two years - is reportedly "very close" to their son Warren. She calls him her "No. 1 son" on her Facebook page, according to Daily Mail.

The report shows photos of Pamela with Warren as a child, a teenager, and as an adult with his wife Sue Vanner and son Ryan. Warren's wife is 16 years older than him and a friend of Vanderpump's, according to the report. Pamela currently lives in England.

View photos of Pamela with her son Warren, his wife and son here.

Vanderpump opened up about her secret stepson for the first time during season three of her reality show in February. She also blogged about Ken raising his son alone and why.

"He was married briefly for two years at 19 to a young wife who wasn't prepared for the challenging job of being a mother," she wrote. "So he then fought for custody of their only child. He worked many jobs laboring, night jobs, anything to provide for his son and with the help of his mother, raised an educated, well-mannered young man."

Vanderpump and Ken wed in 1982 after dating for only six weeks. The couple have since been married for 30 years and have two children together.

Vanderpump currently stars in ABC's hit dance competition Dancing with the Stars, season 16. She appeared on The Real Housewives of Beverly Hills season 3 reunion- part 1 on March 25. Part 2 will air on April 1 on Bravo.

Watch Lisa and Ken's guest appearance on Andy Cohen's Watch What Happens Live.

Tags: lisa vanderpump Ken Todd real housewives of beverly hills reality stars