Real life is following fiction for a couple of Glee stars.

Just a few days after Ryan Murphy said he was breaking up Sam and Quinn, partly to place the former in a relationship with Santana, witnesses at Naya Rivera's Las Vegas birthday party over the weekend confirm that she and Chord Overstreet got awfully close.

"They were all over each other," one source said, while another summed it up thusly: "Yeah, they hooked up."

Last year, Rivera was linked romantically to Mark Salling (Puck). According to one insider, her dalliance with Overstreet could come straight out of a Glee script:

"She knew what she was doing, trying to make [Mark] jealous. Funny thing is, he really couldn't care less."

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.