Larry King and 7th wife file for divorce

CNN host Larry King and wife Shawn Southwick filed for divorce in California today, citing irreconcilable differences.

Southwick, 50, allegedly believes that her elderly spouse has been carrying on an illicit affair with her sister, Shannon Engemann. Engemann denies the accusations:

“This is so ludicrous,” Engemann told TMZ Wednesday. “She’s singling me out, but Larry has been nothing but generous to our entire family, including me.”

She admitted King gave her gifts but wasn’t specific. She said Southwick threatened her over the phone, saying “If you dare sue the Enquirer I will pull out every last receipt that proves you had an affair with Larry.”

She said King was “like a father” to her.

“I’m tired of taking the wrap [sic] for things. I did not have an affair with Larry,” she said.

In court papers, King, 76, seeks joint custody of the couple’s two sons, Chance, 11, and Cannon, 9. Southwick is petitioning for primary physical custody, spousal and child support and the couple’s home in Beverly Hills. Southwick is King’s seventh wife and eighth marriage- King divorced and remarried his second wife.