Swift thinking

Taylor Swift and Conor Kennedy in Hyannisport.

Its what grandmothers love to do.

Matchmaking Ethel Kennedy helped put grandson Conor and Taylor Swift in each others arms last week at the family compound on Cape Cod.

Kennedy, 83, a big fan of Swifts music, orchestrated a Love Story between her 18-year-old grandson and the country singer-songwriter.

As The Post first reported, Taylor, 22, and Conor dubbed TaCo by online fans spent last weekend getting cozy at Hyannis Port.

They met on July 4, and fireworks instantly went off. Theyre now infatuated with each other, according to a Kennedy source.

PHOTOS: CONOR KENNEDY AND TAYLOR SWIFT

Robert F. Kennedys widow had been fascinated with Swifts musical talent and humanitarian reputation for about a year, an insider said.

Ethel read a 2011 New Yorker piece in which Swift gushed that when on tour, she uses her computer to watch TV documentaries about the famed family.

Im just so obsessed with the whole history of JFK and RFK, she told the magazine, adding that she had completed a 900-page book called The Kennedy Women.

Ethel and Swift became such great pals, the Grammy winner flew out to the Sundance Film Festival in January to walk Ethel down the red carpet at the premiere of Ethel, the Rory Kennedy-directed HBO documentary about the widows life.

Yesterday, Swift looked like the newest member of the clan as she face-painted some of the little Kennedy girls in the back of Ethels house.

Later, Taylor and Conor were spotted reading books and magazines on Ethels lawn.

She looked very relaxed, very happy, another source said.

Members of the political dynasty think its! cute th at Conor is going around calling the country singer his girlfriend, the sources agreed.

I was a little surprised. Its been two weeks and hes in love, one source said.

He thinks of her as his girlfriend not just friends or dating. He calls her his girlfriend.

And the Kennedy kin also love Swifts wholesome, all-American image a perfect shot in the arm for the famed family that has been battered by bad press and traumatic deaths for decades following the glory days of Camelot.

They think its great, that source said. Anything positive associated with an all-American girl like Taylor Swift cant do any harm.

Additional reporting by Emily Smith and Chuck Bennett

reuven.fenton@nypost.com