Just found this and it's so damn good.
https://exhentai.org/g/3033459/5b9810aac1/
>girl is caught by a futa
>futa declares she'll turn the girl into a hucow
>futa repeatedly casts charm magic on the girl's eyes and breasts, making them bigger and ready to produce milk
>futa coaxes her that becoming lifestock is great and she'll get milked every day
>eventually the girl succumbs and they live happily ever after with lots of milking
The dialogue is really erotic. Might try translating later.

Just found this and it's so damn good.
https://exhentai.org/g/3033459/5b9810aac1/
>girl is caught by a futa demon
>demon declares she'll turn the girl into a hucow
>repeatedly casts charm magic on the girl's eyes and breasts while coaxing her that becoming lifestock is great and she'll get milked every day
>eventually the girl succumbs and they live happily ever after with lots of milking
The dialogue is really erotic. Might try translating later.