• Steven Molaro, Bill Prady, Mayim Bialik, Jim Parsons, Kaley Cuoco, Johnny Galecki, and Simon Helberg attend The Paley Center For Media's 33rd Annual PALEYFEST Los Angeles.

Steven Molaro, Bill Prady, Mayim Bialik, Jim Parsons, Kaley Cuoco, Johnny Galecki, and Simon Helberg attend The Paley Center For Media's 33rd Annual PALEYFEST Los Angeles. (Photo : Getty Images/Matt Winkelmeyer)

"Big Bang Theory" Season 10, episode 14 will feature the return of Raj's (Kunal Nayyar) girlfriends', Emily (Laura Spencer) and Claire (Alessandra Torresani).

Throughout the past couple of episodes, Nayyar's character was not part of any major storylines. His biggest contribution in the series had to do with the support he gave to Howard (Simon Helberg) and Bernadette (Melissa Rauch) while they were waiting for the arrival of their baby.

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But this will change on next Thursday night's episode when Raj is put on a tight spot the minute both of her girlfriend pay him a visit. In the photo released by CBS (via Entertainment Weekly), Raj will not only have to deal with Emily and Claire because Emily (Katie Leclerc) and Lucy (Kate Micucci) will also make a comeback.

In the snap, Raj talks to all of his ex-girlfriends while Howard listens to their conversation. It is unclear what the focus of their discussion will be all about, but showrunner Steve Molaro previously confirmed that Spencer's character Emily has been upgraded to series regular.

Meanwhile, "Big Bang Theory" Season 10, episode 13 aired on Thursday, Jan. 20. In "The Romance Recalibration," Leonard (Johnny Galecki) and Penny (Kaley Cuoco) are faced with a marital issue. When they realized how difficult it was to understand each other, they decided to ask Sheldon (Jim Parsons) for help.

Sheldon helped Leonard and Penny come up with a relationship agreement to make their marriage more peaceful. But towards the end of the episode, the couple realized that they just have to adjust to each other's needs. They almost instantly fixed their problems while drinking a glass of wine.

Elsewhere in the episode, Howard and Raj completed Hallie's nursery. Everything has been designed according to plan. The two men also have a conversation about what the future holds for them and realized that no matter what, they will always each other.

Online episodes of "Big Bang Theory" Season 10 may be viewed on CBS and other streaming sites.

"Big Bang Theory" Season 10 airs Thursdays at 8 p.m. EST on CBS.