Larry King divorce: His alleged affair with her sister, hers with son's coach

larry-king-shawn-southwick2.jpgThe rumors about talk show host Larry King having an affair with his wife Shawn Southwick King's sister have been floating around Hollywood for several years.

"But the rumors started to gain more strength in the past six months," according to The Dish Rag's exclusive source, a longtime friend of Shawn's.

TMZ reports that Shawn discovered her husband had bought expensive gifts for her lookalike sis, Shannon Engemann, like a $160,000 car and lots of Cartier jewelry.