Byron allowed the playful nip with a smirk on his lips. Such a soft action was innocent and while it might have been endearing to others, it was only a representation of how exhausted the boy was. Byron did not do endearing actions or innocent play. While he was not overtly violent and detached in public, he was very well known for his harder play than a lot of the employees.
"Hmm, you'll have to tell me about that fun some time." It was enough information to sate his curiosity for now. Requests with the Ringmaster never sounded all that interesting even when it involved attractive members of staff.
Bringing his hand up to Kit's face, he traced over his chin before running the bitten thumb over the boy's lips. As he did that he grabbed Kit's wrist and stepped backwards. He lifted the fellow vampire's wrist to the blade stuck in the wall and cut it open with far more vigour and depth than a playful nick to the thumb. "If we are playing, we are playing correctly." He leaned in, tracing his lips over Kit's ear. "We'll just have to exhaust you further."