The Simpsons - Season 22, Episode 19 - The Real Housewives of Fat Tony

Fat Tony (voice of Joe Mantegna) woos Marge's sister Selma, and they marry. Marge worries that Selma is choosing her new lifestyle over family after the whirlwind romance, but Tony invites Homer and Marge to join them on a getaway at the Jersey shore. Meanwhile, Bart develops a gift for finding truffles, much to Lisa's delight.