9+11+assumed pre canon relationship
Peter's favorite thing was when the kids weren't looking to mess with Chris. They had all still been unaware that the two men had a little thing when they were younger. Probably because they kept it secret. That and Kate and Derek sort of stole the attention for obvious reasons.
There was a discussion about whatever weird thing wandered into Beacon Hills, but Peter wasn't paying attention. He was sticking to the background, only inching towards the group to rest his chin on Chris' shoulder.
"Doesn't this seem like a waste of time? We could be doing something else."