It gave Riley a private pleasure to see that he could push the vampire's buttons. He liked knowing that he was the cause of the annoyed look on Tao's face. While that wasn't exactly useful at the moment, he did store that knowledge away. For another time, maybe, if there were other times.
He stepped out and placed his feet a little wider than his shoulders, which were fairly wide to begin with. He thought it was funny that the vampire was shorter than him - since his presence seemed so very big at times. With Tao this close, Riley couldn't help but breathe deep, taking in the vampire's scent. If he really paid attention and allowed himself to sense beyond the stagnant blood and death, he could smell old leather and thick paint and hardwood floors, and maybe a hit of the perfume that the human woman had been wearing. When Tao raised his hand for the collar, Riley flinched instinctively and then his eyes widened in surprise somewhat when he heard the sound of Tao's skin sizzling. "I can heal that for you." Riley murmured, "Sir." and licked his upper lip.