My girls are nearly 8 now, and one cut her hair in preps ( so they werent twins any more LOL) They fight like cat and dog, and are opposite in sooooo many ways, but when apart they talk constantly of the other ( wishing she was there, what do you think she's doing etc etc) when in trouble they run to each other, and still state "she's my best friend" If having a bad night we still find them in the one bed, tangled up together. They are identical too.