Our house was filled with friends. It was Tom's 30th birthday. Peter, at two months, was a crankypants. Finally, I took him to the bedroom to wind down.
A few minutes into that nursing session, Peter made eye contact with me and smiled. His first "milk grin."
Much as I adore those milk grins, I think Tom likes them even more. He loves to get Peter laughing in the middle of a feeding, watching that little tongue dart like a reptile's as he laughs open-mouthed without ever releasing his latch.