Michael: dyes his newborn's hair purple, plays green day and all time low to get them to go to sleep
Ashton: ties a bandana around newborn's head as soon as he can, teaches them how to selfie at a young age
Calum: let's his child run around naked all the time, passes on his sass and good eyebrows
Luke: makes sure that his child doesn't get bullied by Michael's child, cries when child cries
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got this from tumblrrrr