They didn't leave Giorgio Baldi Ristorante together last night, but around the same time... Coincidence or secret date?

The rumor has it that the Russian Roulette songstress and the Phone Booth actor have been exchanging sexy text messages for a while and that they could be together.

The Irish Daily Mirror reported five days ago that Colin was telling his friends that the relationship was “moving so fast” and that he was hoping to spend quite a bit of time with the singer over the summer because he wants his kids to “be used to her and have a good relationship.”

The two met on The Graham Norton Show in December 2010.