Albus Dumbledore was pondering.
As he often is, which is why a Pensive is a must in his life. He knew for a fact that the only counter-curse for the Permanent Sticking Charm was for flesh, and he could do the spell perfectly fine.
The thing was, he didn't.
It was far too amusing Mr. Potter and Ms. Evans bicker, added to the fact that one of them could not stomp off angrily would amuse anyone. But, he was the Headmaster. If he weren't the Headmaster however...
He was taken out of the thoughts swirling around in his head by the nervous cough of Lily Evans, still looking at him hopefully. James Potter looked content hovering over her, and Remus had started to fidget in the comfy chair.
As his twinkling eyes met with the mischievious hazel ones, he placed a hand under his chin. He had made his decision.