Poc romance heroes and... Er... Size relations.

One of the usual conventions in romances of certain heat levels is that the hero should possess a particular attribute of high-average to above-average proportions. While size doesn't have to matter, I'm generally okay with this.

My current manuscript has a Black hero (pure historical, no paranormal aspects), and of course, one of the major othering stereotypes of Black men is that they're all so blessed.

Am I playing in to that stereotype by following genre expectations for endowment, or do I go with the flow and make him as heroically proportioned as the rest of his romantic hero peers?

(The things I worry about over my evening tea... But seriously, I don't want to fall in to ugly tropes because I didn't think things through.)

It seems to be a thing -- along with no infidelity (main romantic partners are not allowed to sleep with anyone else once they've kissed, essentially), and no domestic violence allowed from a protagonist. Which make sense in a romantic fantasy, really. It seemed to be a generally accepted requirement across the board from the books I'd read before I started writing. Maybe I'm completely mistaken? (it's been known to happen. )

I don't imagine my editor would make me put a line in about it if I omitted it completely, but it seems to me that checking out package size is one of the first things to go through someone's head when they see their male lover naked for the first time. It seems weird to omit it from my heroine's train of thought, after she's been rhapsodizing internally about his hands and arms.

eta: I can probably solve this to my satisfaction with a line about 'perfectly proportioned' and leaving the heroine's personal preferences to the imagination. I like to think the hero is a well-rounded and non-stereotypical character otherwise, but I don't want to cross the line into problematic.