Looking at Sheldon and Penny, one wouldn't imagine them to be a great match. These characters are often insulting each other or taking each other on - depending on the scenario. Actually, they are very much like siblings. That being said, they love one another tremendously and will always have each other's backs.

But, can the same be said for Jim Parsons and Kaley Cuoco who play these two characters? Yes - in fact, these two actors are even closer in real life than their characters on The Big Bang Theory. This is only natural since they have had to work so closely over the last few years. We believe that these two developed a very strong bond soon after they started working together. Jim and Kaley's relationship is an unbreakable one, and one fans enjoy following. They may seem like chalk and cheese but they are more similar than we'd think.

15 Jim Parsons And Kaley Cuoco Admit That They Love Each Other (As Friends Obviously)

There's nothing like a little love flying around to make one smile. That was the case with Jim and Kaley behind the scenes of The Big Bang Theory. The pair have grown so close that they will openly admit that they love one another. Obviously this isn't a romantic love...

14 Kaley And Jim Spend Tons Of Time Together Away From Work

There is a saying that goes something like this: 'Don't mix business with pleasure'. However it is apparent that Kaley is not very good at this. Just check out her relationship with Johnny Galecki (AKA Leonard Hofstadter). So, of course she would be spending time with Jim away from work.

13 The Pair Always Sat Together At Events, From BasketBall Games To Awards Ceremonies

These two friends also attended an exciting Lakers basketball game together. What better way to enjoy the game than with a buddy close by your side to help cheer them on! These two really have fun no matter what activity they are doing! This won't be the last one, either!

12 They Also Celebrate Each Other's Successes

Jim and Kaley are always there to back one another up. Jim was also there when Kaley was told about her star on the Hollywood Walk of Fame. What an amazing moment to be a part of! They are always so authentic when sharing in these successes and it shows!

11 They Haven't Had Any Reported Off-Screen Drama

Kaley and Jim are probably not the easiest people to get along with in the work environment. We know that the ladies can be rather catty - this is evident in the tense relationship that Kaley Cuoco has with Mayim Bialik... But Jim and Kaley have not had any reported drama.

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9 Jim Always Said That If Kaley Walked Out Of TBBT, He Would As Well

These two stars have got such a close bond, and while filming The Big Bang Theory, Jim always maintained that if Kaley Cuoco was to leave the show for any reason, then he would walk out with her. Isn't that so sweet! Luckily for viewers this was never the case!

8 They Have Even Been On Double Dates Together

Kaley has had a few ups and downs while trying to find the perfect man. Jim was perfect but sadly he prefers the gents. Kaley has been married (more than once). Jim and his spouse have been spotted double dating with Kaley and her significant other as well! Too cute!

7 The Pair Often Played The Fool Behind The Scenes

This friendly couple is also known for their wit. "Shenny" is what they have been named by fans - which is an obvious combo of Sheldon Cooper and Penny. Besides giving great hugs, these two also tend to play the fool a lot - both in front of, and behind the cameras!

6 Kaley And Jim Love To Drink Wine Together

There is nothing like a glass of wine with your BFF to unwind and relax after a hard day's work. That is exactly what the pair like to get up to together. It seems like they have more than enough glasses to go around based on this snap of them!