Lily and Violet are 19.5 months apart and they interact really well so far. They give lots of hugs and kisses to each other. Every morning whichever one wakes up first likes to go and wake the other one up with a hug/kiss, it's super sweet
Lily does get jealous now that Vi is always taking toys, etc. She yells "No, Violet!" a lot

But Violet adores her. I find them super cute, especially when Lily says that she is going to the potty. Violet will try to run ahead of her and lift the toilet lid and just wait for her. And she always wants to flush the toilet when Lily's done