ERICA Kane is about to join TV’s newest “in” group — cougars.

The 10-times married character on soap-opera “All My Children” is going to woo and bed a man so young . . . he used to be her son-in-law, Ryan.

The show’s producers confirmed the May-December summer romance yesterday.

In real life, the actress who plays Kane, Susan Lucci, is 62 and the actor who plays Ryan, “Dancing With the Stars” competitor Cameron Mathison, is 39.

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