Liss and Lucienne were twin sisters. At birth, they were shipped to the orphanage. Although they were twins, it was only appearance wise. Liss was a lighthearted, bubbly filly and Lucienne was a quiet, shy one. However, they became very close over the years. They had to, with each other as their only friend. They had to, because couples that came in to adopt instantly scowled in disgust at them. They had to, when they were an unwanted, two-headed abomination.
Weird idea that went up in my head. I have never seen a two headed pony OC before.