Are literally just Kogoro and Lavie in reverse.

Kogor: Always smiling/laughing, even when sad, tired, or angry.
Lavie: a tad reclusive, can understand the subtle changes in her brother's expressions.

Maud: Reclusive, always stoic, even when happy or angry.
Pinkie: Always laughing, can understand the subtle changes in her sister's expressions.

muh nigga

this is a test, ignore

Think BronyWriter will get mad if I turn his most popular character into a rapist?

I wrote a new story that's destined do be universally hated instead of updating the super popular one that I have.

Le link