The plot thickens.
Hours after CNN's Larry King and wife Shawn Southwick both filed for divorce, Southwick's sister is slamming rumors that she had an affair with King.
"This is so ludicrous," Shannon Engeman tells TMZ. "I did not have an affair with Larry. He's been like a father to me." She says that her sister Shawn herself has made the accusations, citing expensive gifts that King, 76, allegedly gave to his sister-in-law.
"She's singling me out, but Larry has been nothing but generous to our entire family."
Engeman adds that Shawn "has left me threatening messages…I love my sister. What's happening is not my fault."
Earlier Wednesday, King, 76, filed divorce papers in an L.A. court on Wednesday, citing "irreconcilable differences" with Southwick, 50. Southwick filed her own divorce papers (via her lawyer) shortly thereafter. Southwick asks for for primary physical custody of their kids, plus spousal and child support.
The couple wed in 1997 and and have two sons: Chance, 11 and Cannon, 9.
King's lawyer told TMZ, "It's a very sad day in Larry's life and he hopes the divorce will be amicable, adding, "Larry loves his children very much and will be an integral part of their lives."
"My major concern is the welfare of my children," King said in a statement to UsMagazine.com. "Beyond that, I will have no further comment."
When the twosome celebrated their tenth anniversary in 2007, Southwick bragged that she was the "only [wife] to have lasted into the two digits."
Southwick is King's seventh wife, but the suspender-wearing talk show host has actually been wed eight times: King and Alene Aknis divorced in 1962, remarried in 1967, and finally divorced again in 1972.
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