A stray thought...(Noblesse fanfiction- Regis/M-21 Pairing)

Regis has a thought. And that thought turns into more thoughts. And it eventually makes him wonder what is wrong with him. And the one who is to blame for all this is M-21 himself. And not only that, but the other modified humans seem to have some sort of fascination with keeping M-21's so-called 'love-life' innocent...