He did a double take, nearly coughing when the door opened. He'd never considered the possibility of having an other sibling, let alone a twin. Why should he have? This sort of event didn't seem too common. And now, a female version of him---one that was supposededly his age, yet looked eerily like he did in his mid teens---was staring back at him. Once he'd regained his composure, he cleared his throat, "Mary" he gave a polite nod, "I...guess I should come in?" He subconsciously toyed with the hem of his navy blue shirt.