Is it too perverted to ask if any of the ghouls would have a menstruation fetish, especially with human?

I think I died on my keyboard seeing this.
But honestly, I just wrote about them sucking breast milk, I doubt ‘too perverted’ is in the cards here.

Uta no doubt. He takes every chance to get a little taste of you, licking a cut, sticking his tongue in your mouth [and other places], and it’s not as if he’s shy about going down on you.
And your sweet blood mixed in? Uta’s new favorite treat. If you’re unsure about it, Uta will remind you that orgasms relieve cramps, and he will be very happy to help any time you’re in pain. Plus the image of him smirking up at you from between your legs, licking the blood off his mouth is rather convincing.

Nishio would go down on you, all the while acting like this wasn’t brought on for his own enjoyment and telling you how ‘You’re stupid to let a ghoul be so close. It’s like you want to be eaten’
Then licking away any blood that’s gotten on your thighs and definitely planning to do this again a little later.

Sullen, quiet, Yomo. He wouldn’t bring up going down on you during your period, but if you asked for assistance then Yomo would get hot under the collar slowly savor your blood in his mouth. You’ve hit one of his kinks on the head, not that he’d voice that.

Itori: a pro at eating you out, also a pro at talking you into letting her eat you out during your cycle. While every ghoul loves the taste of blood, Itori always compliments yours. She also likes when she can’t see the difference between your blood and the lipstick marks she’s left on you.

Tsukiyama would, but think twice before letting him get between your thighs. He’s been known to go a bit overboard and might get a little crazed from your scent and the taste of your blood and begin to literally eat you.
He would feel remorse but also be poetic in French, whether you live to hear his smooth monologue or were a full course meal in bloodlust.

Eto wouldn’t be opposed to the idea at all, quite contraire. Especially if you’re shy about bringing it up to her. She drags you too a room where you’ll definitely be heard by others and enjoys teasing you with her fingers until you cum a mess before she licks it all up.

Only after writing all these and editing did I realize that you said ‘menstruation fetish’ and not oral during menstruation. So I hope this still suffices.