What had been a lowthroated purr had already drifted into an almost-dangerous growl, watching the other man through his lashes because he knew it wasn't going to be long at all before his eyes had closed completely, either from sensory overload or to prevent the same.
One hand moved, sweeping through Toki's hair to lift it up away from his face, scritching intently at the other man's nape as he did so, it was really mostly to keep himself grounded at that point.