I thought of Siamese twins, and when I was drawing this I made up a story in my mind.
Carrol (right) was always very much suspicious of her sister Coral (left). She was always smiling no matter what and liked to show off how kind she was by doing "nice things" for other people. Carol was so sure she was just trying to show her up, but she wasn't buying it. She was so certain one day her sister wanted to have her removed so she could be a regular, single-headed person. One day she'll show her, she promised to herself. One day SHE'LL be the one without two heads! She'll remove Coral!
Ok so it isn't a good story. :|
I'm not a good writer, ok? ok.