It’s a magic moment for ‘Big Bang’s’ Sheldon, Amy

Spoiler alert: This story contains a big relationship surprise that will be part of the Dec. 17 episode of CBS’ The Big Bang Theory.

Amy (Mayim Bialik), left, and Sheldon (Jim Parsons) spend Thanksgiving together as friends on Thursday's episode of CBS' 'The Big Bang Theory.'

BURBANK, Calif. – For Sheldon Cooper, sex is no longer going to be just a theory. At Tuesday’s taping of the Dec. 17 episode of CBS’ The Big Bang Theory, brilliant, awkward scientists Sheldon (Jim Parsons) and Amy Farrah Fowler (Mayim Bialik) lose their virginity together. After the taping in front of a studio audience, which was attended by USA TODAY, executive producer Steve Molaro issued a short statement.

“After over five years of dating, we felt the time was right for Sheldon and Amy to finally consummate their relationship, and we’re so excited for the audience to see the journey over the next several episodes,” says Molaro, who oversees day-to-day operations of the top-rated, ninth-season comedy (Thursday, 8 p.M.), Which was created by Chuck Lorre and Bill Prady.

Comedy legend Bob Newhart returns as the late Arthur Jeffries, aka Sheldon’s dream-state Obi-Wan Kenobi, in an episode that will be broadcast the night before the opening of Star Wars: The Force Awakens, another milestone event eagerly awaited by Sheldon, Leonard (Johnny Galecki) and their friends, all devotees of The Force.

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The long-term status of Sheldon and Amy, referred to by some fans as Shamy, has been up in the air since the Season 8 finale, when Amy called for a timeout in the relationship. That led to a full-on split early this season, which came at the same time as the wedding of Sheldon’s roommate Leonard (Johnny Galecki) and Penny (Kaley Cuoco) and was abetted by Sheldon’s fabled tactlessness. Despite his lack of diplomacy and emotional IQ deficit, Sheldon loves Amy, as evidenced by an engagement ring he had planned to give her.

As last week’s episode, Sheldon and Amy were still enduring a rough patch, as each pursued other romantic opportunities, although not with any particular success. The ice could be breaking as Sheldon and Amy spend a platonic Thanksgiving together in this week’s show. One more original episode will precede the Dec. 17 Bang.

Over the course of the relationship, physical intimacy has pretty much been a non-starter, especially for unerringly chaste Sheldon. If the rare kiss, such as a Season 7 Valentine’s Day smooch, could create a big buzz among fans, the upcoming event is likely to cause quite a stir for those long waiting for and wondering if it would ever happen.

With coitus achieved, will a return to joint Fun with Flags presentations be part of their future?