Mrs. Potter: James, learn from your sister.
Mr. Potter: James, you have to let your sister
Miss Potter: Brother...
James: What? ! I'm letting you go!
Miss Potter: Then give me your brother too!
James:? ? ?
Sirius:? ? ?
Remus:? ? ?
Peter:? ? ?
Mr. And Mrs. Potter: James!
James: Okay! You take your pick (professional fake smile)
Lily: My dear, your aesthetics are really worrying.
When getting married
Lily: Your sister and Sirius are perfect for each other. Sirius is still very handsome when he is quiet.
James: Sirius, let's duel
Sirius:? ? ? Have you been kicked in the head by a troll?
James: It's okay if you rob my sister, but what's going on with my wife?
Mrs. Black: James Potter? ! Who are you going to duel with?
James: Nothing, nothing
Purpose: Use magic to defeat magic