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OTRC: Lea Michele was 'grossed out' while filming sex scene with 'Glee' co-star Cory Monteith

Lea Michele appears in a promotional photo for the third season of 'Glee.' (FOX / Danielle Levitt)

Warning: Spoilers ahead. "Glee" characters Rachel Berry and Finn Hudson are going to take their relationship to another level and Berry will lose her virginity to her boyfriend in an upcoming episode of the popular musical series.

Lea Michele, the actress who plays Berry on the Fox show, said that shooting her sex scene with co-star Cory Monteith was a little uncomfortable.

"Oh my god, it was way awkward," Michele told E! News about shooting the scene, which was shot on set near a fireplace. "I adore Cory. He's like my brother and to have to do some of the stuff we did in front of our entire crew."

"It's so less sexy than you think. Really, we were in a room with like 20 people around us, sitting by the fireplace," she added.

Michele also said that because the two were near a fireplace, Monteith began sweating. "He was sweating so much," Michele said. "I was so grossed out!"

The Finn Hudson character lost his virginity to Santana Lopez (played by Naya Rivera) in an episode during the show's first season titled "The Power of Madonna." He later regrets the decision.

The sex scene with Michele and Monteith occurs in the season's fifth episode titled "The First Time," which is scheduled to air on November 8. Michele added that she was happy about how the scene turned out.

"I saw some photos and I was like 'Damn! We look good,'" the actress said. "As a fan of the show, it's something I wanted to see for awhile and it's very interesting how everything plays out."

It was announced on Monday, October 24, that former "Glee" actor Chord Overstreet will return to the series for a multi-episode arc beginning in December.

The actor began playing the part of role of Sam Evans in season 2 of the FOX musical comedy series in 2010. It was reported earlier this year that would not be made a series regular like his castmates Darren Criss and Harry Shum Jr.

Sources close to the matter had said Overstreet was not fired and was welcome to reprise his recurring role. He has not appeared on episodes of the third season, which began in September.