petitlavande
❝ There are not many things that could penetrate the skin of a lupus - silver bullets, the claws and fangs of someone of the same species, the bites of a vampire - perhaps that is why he is so fascinated to see his marks on Donghyuck's skin. Looking at the brownish, he silently asks for permission, something that is granted to him with a soft and encouraging smile.
Then, without further ado, Mark finally gives in to the burn on his throat and bites.❞
― Or wherein Donghyuck is a lupus and Mark is a vampire, and they make a deal.