Justin Timberlake's Ex Jessica Biel Auditioned for Mila Kunis Role in 'Friends With Benefits'

Looks like Jessica Biel wanted a piece of the Friends With Benefits action with Justin Timberlake. At last night's NYC premiere, writers of the hotly-anticipated rom-com revealed that Jessica screen-tested for Mila Kunis' role in the flick!

"She was actually a huge fan of the project and screen-tested for it years ago," writer David Newman told Page Six at the Cinema Society's screening of the flick.

So why didn't Jessica get the part?

"We're not the director," Newman quipped, adding that it wasn't because of her looks, "She's great and adorable — smoking hot."

He did clarify that, "Mila was fated for the role."

And how about those hook-up rumors raging about Justin and Mila?

"They have such amazing chemistry, everyone is questioning what is going on," co-writer Keith Merryman said. "Is it art? Is it life?"

Justin and Jessica split in March of this year.

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Justin already starred with his ex Cameron Diaz in Bad Teacher, so he must know how to keep things amicable and professional on set.