The Big Bang Theory season 9
Leonard and Penny will consummate their marriage in The Big Bang Theory season 9 episode 2CBS

Leonard will confront the woman he kissed during the North Sea expedition, and try to make his marriage with Penny work. Meanwhile, Sheldon tries to find new ways to get Amy back into his life in The Big Bang Theory season 9 episode 2 airing on Monday 28 September at 8pm ET/PT on the CBS Television Network.

The second episode is titled The Separation Oscillation, and the official synopsis reads as follows:

Leonard confronts the woman he kissed on the North Sea in an attempt to set Penny's mind at ease. Also, Sheldon films a special episode of "Fun with Flags" after his breakup with Amy, and Bernadette feels guilty about withholding a secret from Penny.

Leonard and Penny finally walk down the aisle in the premiere episode, and Sheldon stalks Amy to find out the status of their relationship. The episode ended in disaster for both of them, as Penny fights with Leonard over Mandy, and Amy finally ends her relationship with Sheldon leaving him shattered. As Leonard puts it, "I cannot believe that I am spending my wedding night with you[Sheldon]."

According to a new report, Leonard and Penny will consummate their marriage after Leonard confronts Mandy. Besides, Sheldon shows up on Amy's doorsteps to give her stuff back, and Amy finds a sexy red bra that isn't hers. This has been planted by Sheldon in an attempt to make her jealous. She obviously sees right through his web of lies.

The report further states that Amy shows up at Sheldon's apartment furious at the new episode of Fun with Flags, where he talks about their breakup publicly, and demands the episode be taken down. Sheldon is convinced that she still has feelings for him and Amy leaves the building fuming.