WITH Patrick Schwar­zenegger declared off limits, TAYLOR SWIFT Swift has moved on to his 18-year-old cousin CONOR KENNEDY – but pals are warning the country cutie that she’ll wind up sing­ing the blues!

“Everyone has been remind­ing Taylor that Kennedy men are notorious womanizers,” said a source close to the 22-year-old singer.

“There’s a long history in that family of cheating and she should run for the hills! But Taylor just laughs it off, at one point saying, ‘Don’t be silly. Conor has a heart of gold.’”

As The ENQUIRER reported, Taylor started cozying up to Patrick, 18, on Independence Day at the famed Hyannis Port, Mass., compound. But his mom Maria Shriver told the multiple Grammy winner to back off, fearing she would write a song about him, like she has with other ex-beaus, after the inevitable breakup.

So Taylor turned her af­fections toward curly-haired Conor, who’s still grieving the tragic suicide of his mother Mary last May.

“Taylor and Conor have taken over the Kennedy compound,” revealed the source. “If they aren’t sailing or tossing around a football on the lawn, they’re strolling the grounds hand-in-hand or smooching under a tree.”

Now Taylor is looking to buy a nearby $4.9 million mansion.

Said the source: “She and Conor remind people of a young John and Jackie Kennedy – they’re the talk of the town!”