Responses
Bruh, he doesn't have romantic or sexual experience (or expectations) Of course he's gonna be a bit confused, plus all short youthful adult ≠ child. I also feel that is because of the chibi-ish artstyle. I guess you're suspension of believe (how believeable a worldbuilding in stories) in this story is broken because Creme look so cute.
This is not to infantilise the MC here, but he is cute. He reminds me of my short elder sister. MC is not a kid, he's short and fluffy, and possibly the eldest of his siblings with more housework experience than regular dating. Also to add, the dynamic here is not inherently sensual or purely racial (animal race) but a more regular stuff like ranks (because the ML goes by Lord so we can assume he is an figure of some kind in wolf society)