While laying in bed with us (me and ds) which she does faily often because "that's where bubby is" she rubs his head, arm or belly. Kisses him on his forhead or cheek while he is sleeping. In the morning he is usually cuddled up with her and she has her arm under his neck while he sleeps on her shoulder.
I am so happy she loves him so much. She is such a wonderful girl! Me and my brother (same age gap) did not get along at all. We still don't get along and I am 30! I didn't have a close family growing up, so I am very excited that we are building a good strong family! They are too cute to watch!