What episode was when Kate Beckett answered 'no comment' to 'liking a bad boy' kind of question?

I think it was from season 2. They asked some questions to this female guest star's character. She said something about like she likes bad boys and then asked Beckett about it too? I'm sorry if my question is quite confusing but i do hope you get the point. They were with Castle in that time and she was drinking coffee, maybe giving the scene might help. :)