Taylor Swift Visits Mary Kennedy"s Grave, Crashes Wedding With Conor

Taylor Swift Visits Mary Kennedy

The Wedding Crashers 2, starring Taylor Swift

Diving head first into her one-and-a-half-month romance with Conor Kennedy, Swift was determined to party with his storied political family in Boston on Saturday for Kyle Kennedy”s wedding to Liam Kerry — much to the dismay of the mother of the bride.

Victoria Gifford Kennedy told the Boston Herald that Conor, 18, and the country-pop superstar, 22, “texted me an hour before the wedding and asked if they could come. I responded with a very clear “Please do not come.” They came anyway.”

Kennedy continued to rail against the “We Are Never Ever Getting Back Together” singer: “I personally went up to Ms. Swift, whose entrance distracted the entire event, politely introduced myself to her and asked her as nicely as I could to leave, . . It was like talking to a ghost. She seemed to look right past me.”

Counters Swift”s rep: “Taylor was invited to the wedding and the bride thanked her profusely for being there.”

The very next day, Swift was Conor”s plus-one for a much more solemn Kennedy family gathering: A visit to the grave of his mother, Mary Kennedy, who committed suicide back in May. (Conor”s dad is Robert F. Kennedy, Jr.)

“Taylor”s been consoling him,” a source tells the new Our employees, out now, of Conor”s stunning loss.

Still, some of those closest to Swift are concerned about the fast-track romance. “She”s obsessed with the family,” a source says of Swift, called a “Kennedy groupie” by Ted Kennedy, Jr., according to another insider.

“She says it”s a fantasy come true,” the first source says. “She”s very smitten.”

The Grammy winner, who”s been famously burned by past beaus Jake Gyllenhaal, Joe Jonas and John Mayer, is “always rushing into love,” a pal tells Us. “We all wonder why she can”t take it slow.”

For much more on Taylor”s dizzying new romance — and friends” concerns that she”ll scare him away — pick up the new Our employees, on stands Friday!