The TV star spent all of Monday (03.07.06) with the former 'O.C.' star filming segments for his Channel 4 show 'The Friday Night Project' - and even escorted the stunning actress to the London premiere of 'Pirates of the Caribbean: Dead Man's Chest'.
Collins has now revealed she has a filthy mouth.
He told BANG Showbiz: "She has a wicked sense of humour. She's really cheeky.
"I was quite shocked to be honest because she looks all sweet and lovely but she would come out with certain things and I would just be stunned.
"She's one hell of a girl. She's wicked and I love her."