The cutest thing happened today.
I took something away from Molly (now 14 months) in the kitchen and she turned away from me and started a full on make-your-ears-bleed, scream that would make a banshee proud, fit. Her screaming lessened to plain crying after a few seconds and she saw that Lily was sitting at the table watching her.
Molly ran over and buried her face in Lily’s lap, giving her a big hug, then she ran off to go play, completely consoled.