This smooch scene was not the part of the original script but amids the shooting it became integral part of the movie.
Sources close to sets says that Kat showed no interest and was hesitant for the shot, but somehow Zoya managed her and after the shot Kat felt comfortable.
Zindagi Na Milegi Dobara, stars, Hrithik Roshan, Katrina Kaif, Abhay Deol, Farhan Akhtar and Kalki Koechlin.
The story of the kissing goes like this “When Hrithik bids an adieu to the Kat looking in her eyes without any words, then Kat realizes how much she loves and runs off and shows her affection in form of kiss. The scene continues for two- long minutes.