Did she suggest it then? I hope you realise how lucky you were to get to shoot this scene. It is one of my favourite scenes of all time (definitely in my top 5)!
I love this smile. It's just before she asks her teacher to pie her in the face. She knows she's going to get VERY messy at his hands in doing so, but is quite excited about it! Not sure she had thought about the handcuffs or groping at this point though!