Smurfs 2 star reveals her best smooch happened in Monster.

on Aug 2, 2013 - The Dish

No guest on Watch What Happens Live escapes without a round of personal questions from call-in viewers, and on last night's show Smurfs 2 star Christina Ricci got an intimate query: What was her all-time favorite on-screen kiss?

"As a kid, you're not particularly excited to kiss in front of a hundred people and your mom and your tutor," the onetime child actress admits.

"I have to say, kissing Charlize [Theron] in Monster was amazing, because we just cracked up the entire time," she says, referring to the 2003 film starring Theron as a former prostitute turned serial killer (Ricci played her companion). "Her fake teeth would fall into mine and her prosthetics would get stuck to my face. That was hilarious."

Watch Christina Ricci pick her favorite on-screen kiss and tell us in the comments: would you be able to kiss in front of the cameras?