I'd fw it as like a conceptual / non canonical thing, but yeah there's no possible way it would be even slightly canon, Henry sees him more like a little brother or a son and he already has enough issues overthinking how terrible of a person he is for his fantasies towards Jenny as is.
And he's just not interested in that age range, it would be weird to him obvi LMAO
But ohh, groomer Henry.. what a concept.