By Maria Myka (staff@latinospost.com) | First Posted: Feb 28, 2014 10:45 PM EST

Dianna Agron and Chace Crawford share kisses, but before ladies die of heartbreak, it should be made clear that it will be their "Glee" alter-egos who will do so for the show's 100th episode.

Dianna insisted, though, that they were "just tiny kisses." When asked by E! News if the scene did not get any steamier, she said, "No, it's TV. We're not HBO or Showtime."

Former Gossip Girl star, Chace, will make his debut on the musical show with the milestone episode, and according to Dianna, his character, Yalie bad boy, Biff, is " just a snob-a snob and a half."

Although he will be sharing a smooch with the blonde, Dianna said that he wouldn't be joining in the singing. "He's not singing,Although I'm sure he can...He said that he can't, but I think he can. I've heard him play around a little bit."

The two were old friends, and according to Dianna, "It was so much fun to work with him. I've known him about seven years or something like that."

She also recently worked with another Gossip Girl pal, Ed Westwick. Dianna told E! that it was odd that she never worked with Chace or Ed before, but then added, "I worked with Ed Westwick in this movie Conspiracy and then Chace right after, so I got a dose of those boys."

Smooches aside, Glee star Lea Michele told E! earlier in the week that she and Dianna will be performing together in the 100th episode, saying that "Dianna and I got to do this amazing number. All I'll say is we were at a club, there was foam, Gwyneth Paltrow was there and we were dressed up in '70s disco outfits, so that definitely made up for all of our time unspent."

Catch the two-part 100th episode on March 18 and March 25 on Fox.

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