"The Mortal Instruments: City of Bones" co-stars Jamie Campbell Bower and Lily Collins were certainly making fans fall for their on and off screen pairing. Apart from being lovers for the film adaptation of Cassandra Clare's novel, the two were quite the cute couple off screen. They've already been named the next "Robsten" couple in the business, and in celebration of that, here are the sweetest "Jamily" moments caught on and off screen.

Cassandra Clare's best-selling novels, "The Mortal Instruments" were finally getting the attention they deserve. The first book in a series of six, "City of Bones," has a film adaptation set for release in cinemas nationwide by August 21, 2013. "Shadowhunters" was already prepped for the big reveal. Given the hype the film is getting nowadays, it's not surprising people now know of Jamie Campbell Bower and Lily Collins.

The famous "Jamily" couple was certainly getting the media buzz following their cute PDA dates and interviews where they talk non-stop about their characters. Who could forget Lily and Jamie's interview on "Good Morning Philadelphia"?

"When we were doing takes some times, I'd sort of just sit there and look at you. Maybe sometimes I'd forget - don't roll your eyes at me like that - I'd forget that I was meant to be speaking. I love working with you and you are an amazing actress and I do feel honored when I get to go to work and work with you," said Bower when asked to describe Lily's performance.

"The only reason my Clary turned out the way she did was because you were the Jace that you were," stated Lily, who also went on to stroke Jamie's ego.

Check out the slideshow to see more of Jamie and Lily's sweetest moments caught off and on cam.

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