Hrithik Roshan and Aishwarya Rai Bachchan's first pairing up together happened with Yash Raj Films' Dhoom 2 and their sizzling chemistry rocked the box-office.

Ashutosh Gowariker's mega epic Jodhaa Akbar saw them coming back together and taking their chemistry a step further.

Now they are back together for the third time with Sanjay Leela Bhansali's Guzaarish and if our unit sources are to be trusted then these Bollywood's hottest on screen pair displayed amazing rapport when they got shooting together again.

Though Guzaarish went on floors from July 31st, Ash just recently joined them after coming back from Mani Ratnam's Ravana shoot. Our unit sources reveal, "There was instant chemistry between the two as they caught up with each other after a long time. From their first shot together, they were right on cue."

It is learnt that all their shots, which were rather intense, were canned in the first take itself, much to the delight of the director.

And as soon as a dramatic scene would be wrapped up, the two would be cracking up about something they said to each other. "It's their personal rapport that makes their acting seem so effortless on screen, " our source added.

Apparently Ash had also brought homemade food for the entire unit and was instrumental in making the sets cosy for everyone.