[Well, Noctis will very soon learn that Ignis had never had experiences like that before. The only partner he had was his imagination and his own bedroom where he would hide. He had tried to experiment on himself a bit, but it didn't get that far and he doubts it will be the same for Noct.

Ignis gives Noct those moments to calm himself down the best he can and uses them to get a good amount of lube on his fingers.]

I know you won't, [Ignis kisses Noct's lips shortly,] but I've never done this before to anyone so- I need to make sure. That I don't hurt you.

[Gently, he nudges Noct's legs apart, but doesn't do anything just yet, still merely hovering over Noct's body, giving him short kisses, in hope to relax him.] Tell me when you're ready...