“Glee” star Dianna Agron has reportedly hooked up with Leighton Meester retread Sebastian Stan, who starred with Meester on Gossip Girl and dated her for two years.

Aragon, 25, and Stan, 27, are said to be smitten with each other and have been spotted together heatedly embracing at one of her shows.

“He came to Dianna’s 3pm ‘Glee’ performance at the Staples Center in Los Angeles on May 28,” a source told Life & Style magazine.

“He waited for her backstage. Once the cast finished the show, Dianna ran backstage to Sebastian, and they were all over each other!

“Dianna and Sebastian love hanging out together. He can definitely hang with the ‘Glee’ cast,” the source claimed.

Dianna has certainly been playing the field.

In April, she was linked to “Captain America: The First Avenger” co-star Chris Evans. They met at a pre-Oscars in February.

“Chris’ brother Scott is a huge fan of her show, and he particularly loves Dianna,” a friend said.

“He and his friends like to joke that as long as she stays on the show, the family will welcome her with open arms!”

Stan plays Bucky, Capt. America’s sidekick in the film.

He dated Meester from 2008 until last year.

Dianna split from her “I Am Number Four” co-star Alex Pettyfer at the beginning of February after dating for less than a year.

“Alex might see himself as a bad boy, but he’s actually very sweet in real life,” she said at the time.

“I think it’s important to have your differences in any relationship. I wouldn’t want to be dating a carbon copy of myself. That would just be boring.”

Agron plays Quinn Fabray, a high school cheerleader, on the hit Fox show. People named her to their Most Beautiful 2010 list.