Dear Dierdre, I'm Worried....

Dear Dierdre,
I'm very worried, my children are being nice to each other. It happened suddenly tonight.
Little sis let her big brother use the TV for his xbox, big bro let her use his computer in return. He even downloaded something for her. He replied nicely to her friends on skype.
She's just made pudding for everyone, and given her brother a hug.
They've been laughing instead of arguing at dinner time.
What should I do?
From
Worried of West Mids.


Nearly got a blip of them in a headlock hug, but it happened so fast I chopped some of B's head off and it was blurry.