We have heard it all; those masala tiffs between actors, ego tussles, jealousy streaks, unresolved differences, when Bollywood stars start working with each other.

But here Is something we have never heard before, a amicable start between our young stars Imraan Khan and Sonakshi Sinha who are soon going to start working on Milan Luthria's Once Upon A Time in Mumbaai.

Imran who was on a trip to Europe with his wife Avantika recently returned and was seen chatting with Sonakshi who has just finished shooting for Son of Sardar.

The two are going to be seen paired up against each other for the first time ever.

A close hand reveals, "Imran usually doesn't open up with anyone. He takes time getting to know his co-stars, especially if they are people he hasn't met at all.

Once he gets to know them, he is extremely friendly but he takes time to break the ice. But when Imran met Sonakshi for the first time on the day of the prep session, he seemed to be very friendly with her.

They've never worked together except for a cover shoot of a magazine.

It was the first time that they actually met properly and took everyone by surprise.

The source continues, - Imran broke the ice as he told her in detail about his trip to Europe with Avantika and Sonakshi was attentively listening.

They didn't even realize that it had been an hour since they'd been talking until they were called in."

And that's not all.. Imran was also seen chatting with Sonakshi about her recent films Dabbang and Rowdy Rathore along with her yet to be seen item number in Akshay Kumar and Paresh Rawal starrer Oh My God.

stay tuned for more on this.....