Prompt: "Every person is born with a mark on their arm that matches that of their soulmate. I have one such too but it matches with two individuals. Trouble."  

Everyone knew the Oh twins despised sharing, which was unfortunate to say the least because they were a part of the rare group of twins that shared a Soul-Mark, which meant that they had to share their soulmate, the one person that was supposed to be uniquely designed for them. Sehun kind of hoped that neither ever met their soulmate. Shixun claimed that if they ever did meet their soulmate that the other could just keep her for himself. The Oh twins start to eat their own words when Senior Year rolls around and the new transfer student Areum Bang turns out to have a matching Soul-Mark to them.