There's a difference between smutt and hentai slop in my opinion. Hentai slop usually has bad anatomy, that dumb ahego face (though some like that lol), and bad plots which exist to make the MC suffer sex stuff. Plus, showing MC being abused by other men, is part of what moves it from smutt to hentai slop for me, porn for the sake of showing sex. Just my opinions though
That puffy thing that used to be an asshole (in the wrong place in many shots) is the worst turnoff ever and only exists once again to show how abused the MC has been by sex

I'm sorry but this whole story became bad hentai slop, plot and all. Even anatomy went completely put the window with that puffy "asshole" like thing and magically disappearing cock of the MC. It has me so close to dropping.