Noct! NoctNoctNoctNoctNoctNoctNoctNoct- is just about what is going through Prompto's puppy head as he smothers thd now-prone Noctis in kisses. See! He's expressing his love! Like the goodest boy ever, he is the goodest after all. He shows no sign of slowing down or stopping at the protest, being too engrossed in this display.

No, what snaps him to attention- makes him freeze stock-still and swivel his ears around- is the low, confident sound of Angeal calling him a bad puppy. Said puppy responds with something between a growl and a low whine, turning his head towards the source of the sound. Angeal moves with a practiced confidence and a killer tone, and the pup follows his every movement with bright blue eyes. Were Prompto fully human right now, those words would have flustered him. Okay, they ever-so-slightly do like this too. But less than they would have. His focus on Noctis is so great that it balances out. But the little shudder, sound, and immediate attention are likely enough of a tell that Angeal got to him.

As it stands, this pause gives Noctis the opportunity to do whatever he needs to do; leash him, shove him off, glare at Angeal... the works.