Hijackstrid hc that Jack eggs Hiccup on with his crazy plans that could easily get someone hurt and Astrid has to knock their heads together like she does the twins some times.
Jack who does get himself a dragon, but not a Snow wraith or the light fury but his terrible terror problem child he adores that hiccup needs to take care of while jacks away from the archipelago
Hiccup hangs out with a 1000 pound dragon everyday, he totally has picked up dragon mannerisms. You cannot tell me this man would totally growl at Jack trying to pull away his meal. He doesn’t give a shit if your overstimulated honey, he will have his fill.