I'm pretty sure it's finished. I don't remember who was the protag lol since it often switch to the top's pov anyways handsome muscular and cool Commander-knight bottom (black hair) is coerced by the antagonist-prince to be intimate (noncon grape). The ML top is one of the commander's new recruit, a silver haired lord who witnessed one of the encounters., I don't remember the events except the top vow to free the commander and defeat the Prince or something..
It's a korean webtoon set in Western inspired court.
https://www.mangago.me/read-manga/flower_of_the_sun/ maybe, i didn't finish it
Die In My Arms (Yaoi)
https://www.mangago.me/read-manga/die_in_my_arms_kaizen_scan/
Not necessarily insane bottom, just power bottoms or even a switch that y'know don't get swayed by a the top/seme winning specs and personality ~
They have so many chances to speaks things up face to face, alone; but, everytime they're together, they ALWAYS end flirting or have sex ... (〜 ̄△ ̄)〜