Taylor Swift spent the weekend hanging out with boyfriend Conor Kennedy at the famed political family's Cape Cod compound, and new photos show the country star rocking a red bikini next to Conor's dad, Robert F. Kennedy Jr.

CLICK HERE to see Swift's bikini body.

All the fun went down on Aug. 12 in Hyannis Port, Mass., near Swift's new $4.9 million beach house, which reports said she bought to be near her main squeeze, the 18-year-old grandson of Robert F. Kennedy. The pair became close as Swift helped Kennedy cope with the pain of losing his mother, Mary Kennedy, who committed suicide in May.

Swift, 22, was spotted at the Kennedy residence for the first time on July 4, when she hung out with Conor and his cousin, Patrick Schwarzenegger - the son of Arnold Schwarzenegger and Kennedy family member Maria Shriver.

A source confirmed Swift's romance with Kennedy to Us Weekly, adding that the legendary political family has fully embraced the "Love Story" singer.

"Taylor is officially dating Conor Kennedy," the source said. "The Kennedys love Taylor and think she's amazing!"

Swift's red bathing suit is ironically keeping in with the announcement she made Monday: her fourth studio album, titled "Red," will hit stores Oct. 22. She introduced the first bit of new music that same day with the release of the album's lead single, "We Are Never Getting Back Together."