I remember when I first realized X was the "follower" twin -- just a few months into my drawing the strip, after Strip #37 and before Strip #189, right around the time I was dreaming up Alexis. I thought about X having a twin sister (which just made sense), and within a few days, it hit me that X wouldn't be the dominant one. She's a strong person, certainly, but she's no leader -- she's too antisocial for that. Then I realized that would also why X is so anti-social -- she's never needed to learn to act otherwise.
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