He raises an eyebrow, the first deviation from his blank expression during their entire conversation. They could be related. It was an odd thought, quite frankly, that he could be related to some kid he just met in some strange city that apparently messed with his memories. He couldn't very well say they were absolutely not related at all, because all signs quite frankly pointed towards family.

"Supposing you're right, and we are related, is there any way to find actual, definite proof of any genetic similarities we may have? Or are we never going to know the truth, and we will just have to assume just how we are related to one another and try to pretend this entire situation isn't fucking bizarre."