>>11384392
>spermicidal take over
Unfortunately not a lot of it out there. I stumbled upon a written example of spermicidal neutering a couple of months ago, so if anyone here is more literally inclined, feel free to check it out.
>https://www.literotica.com/s/an-investigation-into-divinity-ch-03
The first two chapters are worth your while if you want some "lore" and futa-on-female action. Also, the futa in the attached pic is the futa from the the story.