Ours are extremely close, though Pixie has always been much more dominant, and recently I'm starting to observe more squabbles since Little Man has figured out how to push her buttons, which he thinks is hilarious. It's kind of the same dynamic my younger sister and I had growing up; I was more bossy and she'd do something to set me off and then sit back and giggle deviously. My mom literally has it on cassette tape :-)))
They are POLAR OPPOSITES too. They don't look at all alike and don't act it either, so you'd never think they were even siblings, let alone twins. Pixie is 100% practical and Little Man is 100% imaginative, to oversimplify it :)
How interesting! I hope ours end up being close too. They are so opposite. Even at meal times; baby girl will give you her opinion on everything (Nom, nom, nom!), while baby boy will take his spoon, eat, set it down, then look at you silently with his arms stretched out while he waits for more. But they show signs of concern if the other is crying and comfort one another. I think they will balance each other well. One will encourage a sense of adventure and the other will be the level head.
I love that your mom managed to catch your shenanigans on cassette! That must be fun to look back on. -Aimee