Lara Dutta becomes Abhishek Bachchan's favourite co-star

Mumbai Se Aaya Mera Dost may not have done anything better to boost Abhishek Bachchan's career, but Lara Dutta was talked about for her sexual appeal in the film. Well, not just the audience, but it seems even the junior B is impressed with her looks and probably shares a good reel chemistry with her. Otherwise why would he insist on having her as a co-star in his home production Ranveer, which also has the Big B?

Usually, when a film gets a beating at the theatres, filmmakers are vary of signing the same pair for film, but Abhishek's insistence does sound non-filmi. So, is it just reel chemistry or real chemistry that's working round the clock?