Childhoods

Some (extremely brief) background on my main three sirens
Sorry in advance, I'm not in much of a mood to write anything

Mun
Mun is an only child, so she was incredibly close to her parents without much outside influence. Even so, she has always wanted younger siblings (even though she'd probably get sick of them quickly if that actually happened) and had a slight sense of loneliness. When she still pretty young, a little boy stumbled upon her isolated family and they welcomed him; however, they never once recognised him as a part of their family and treated him more as a "neighbour" than their child. Being so young, Mun was fascinated by him and started to treat him like her own "little baby" and tried her best to protect him. When they grew much older, they started treating themselves more like friends rather than keeping a mother-and-son-like relationship.
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She also really enjoyed playing dress-up and wearing a bunch of accessories; she often dressed up her muma, papa, and even Sasha with random jewellery and such. 

Ross
This wee-one comes from a huge family with four sisters. When he was still little, his parents divorced and his mother remarried; he still saw his dad often but it was shameful that he had so many children without a wife so every visit was a "secret". Even though he missed his dad a lot, he was never really "lonely" since his sisters occupied almost all of his time (even though he finds them really annoying) and he accepted his new mothers fairly quickly. He actually sees his mother's new wife as a part of the family and acknowledges her as his new muma; he loves her quite a bit.
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The little booger also loved stuffed-animals and liked to rip them up for fun; he acted like they were his prey since he's awfully bad at actual hunting. He also HATED haircuts and screamed/cried whenever his mumas cut it forcefully (they wouldn't let him grow it out because he refused take care of it and it easily got matted or caught in random things)

Lachlan
Len had an extremely distant family that caused it to be very dysfunctional. His mother provided him with everything he needed but yet they weren't as close as most mothers are with their children. On the other hand, his father was an abusive man who would occasionally hit or molest him as he was growing up but it wasn't anything that caused his mother to take action on. She pretended not to notice his suffering and ignored whatever he did and it wasn't until she was pregnant with Oriana when Len's father snapped and almost killed him. He severely beat him with a metal rod on his back, choked him, and ripped through his skin with his fingernails. It was only that moment when his mother decided to take him and leave. His father was believed to be executed later for an unknown crime but they don't really know.
Lachlan went into severe shock and went completely mute for months due to pure fear; he wouldn't even look at his new little sister because he hated his father and her both. It wasn't until years later that he became protective of her.
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Lachlan was a quiet kiddo who liked to draw a lot in the sand or just lay around all day. He never really had friends or any close relations but he wasn't really that dissatisfied with being "alone" until he was older and realised that he really was truly alone and nobody would ever be there for him.