[ Little sounds are amazing. This whole thing is amazing and clearly he should do it way more often?

Every time Sion makes a sound, in fact, Naoto responds by doing the same thing but more, even while little by little he gets as much of it in his mouth as can comfortably fit (which given that it's #firstblowjob is probably not the entire thing) and puts his tongue all over it and everywhere

He may not be experienced but at the very least he is enthusiastic. ]