Clary Fray: Given everything that you and I have been through, I know that asking you for a favor right now might be a little awkward...

Simon Lewis: Derek Russel's seventh birthday party. You sat in chocolate ice cream, and were afraid people might think...

Clary Fray: Yeah, you switched pants with me so that nobody would notice.

Simon Lewis: And I was never invited to another one of his birthday parties ever again. That's awkward. This is us.