See pics: Arjun Kapoor wishes 'Rakhi sister' Katrina Kaif on her birthday in the best way ever

We have now-and-then witnessed Arjun Kapoor and Katrina Kaif pulling each other's leg on social media and during media interactions. The two actors share a cute sibling-like bond and it is pretty evident from their social media posts and their comments on each other's posts as well. 

The Tiger Zinda Hai actress is the Arjun's Rakhi sister and hence it doesn't come as a surprise to us when we see them often behaving like Tom and Jerry!

Arjun, who amuses himself by picking on Katrina, took to Instagram on Monday to share a collage of two photos that show him sharing the frame with the actress. One is an old picture, while the other is a recently clicked one.

The Ishaqzaade star wished Katrina on her birthday and wrote, "Happy birthday fellow cancerian #KatrinaKaif. From then to now, u have been my partner in crime. Hope u have a good one, smile more, be happy & keep kickin ass cause ur good at it... #katrinakahappybirthday!!! PS - we still gotta do that film together... #justsaying"

Arjun Kapoor never fails to make fun of Katrina. Just a few days back he nudged her by telling her about her advance birthday present.

The actor, who was enjoying boating with his sister Anshula, shared a picture holding an oar in his hand. He equated it with the title of one of Katrina's most famous romantic songs 'Teri Ore Teri Ore' from the film Singh in Kinng starring Akshay Kumar.

For the unversed, Katrina Kaif celebrated her 35th birthday on Monday. 

On the work front, the actress has two big releases this year- Thugs of Hindostan with Aamir Khan, Amitabh Bachchan and Fatima Sana Shaikh and Zero with Shah Rukh Khan and Anushka Sharma.