Aging CNN talk-show legend Larry King is in the doghouse after explosive allegations surfaced that he bedded the beautiful younger sister of his wife of 13 years.

King, 76, filed for divorce from his seventh wife, Shawn Southwick, 50, in a Los Angeles court yesterday in the wake of the eye-popping allegations. It’s the suspenders-wearing chatmeister’s eighth trip to splitsville, as he divorced one of his wives twice.

Southwick filed for a split the same day. Both cited “irreconcilable differences.”

Sources said the pair fought bitterly for years over her belief that King was sleeping with Shawn’s younger sister, Shannon Engemann, 46.

King spent $1 million on Engemann and lavished her with gifts, including a $160,000 car, sparking Southwick’s ire, according to Radar Online.

Read More: NYPost

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