He did his best to grab at Noctis' hands as he squealed a little, it wasn't fair Noct knew everywhere he was ticklish!

"I-" He missed and he was forced to endure more until he was breathing hard. "Nooo! You're a cheater!" He informed him again. "Fine fine fine!"

Prompto was still giggling a little. "Fine, you win!"

(They were clearly about twenty going on twelve.)