Natsuiro [English], by Ma-kurou
Among hentai mangakas, I sometimes get the impression the artist is a man and he has never touched a woman in real life. As a man, he’s able to pinpoint what we love to see, and gives it to us, to our great delight.
But as an übervirgin, he won’t even notice he totally fucks up basic anatomic notions at some point.
(I’ve also had it with some female hentai mangakas, who drew erect penises making an impossible right angle, so the fault goes both ways somehow ^^)
Here’s a very well drawn release, with a terrible storyline (that you can simply discard, are you here to write a novel about literature, or fap), with a superb girl, tanned, bikini, having excellent-looking intense sex… and suddenly, during four pages, we get a stomach bulge, and with the ovaries fucking protruding under the skin. What the fuck.
Oh well, deal with it, it’s still super hot before it goes FUBAR ¯\_(ツ)_/¯
Thanks to 1sp for the release!
And now, the download & gallery links 
Open the Complete Pictures Gallery
Download the Free Hentai Manga in a Zip file
(22 MB, 18 pictures, English)
Or you can also use the Alternative:
Zip Mirror #1 – or – Zip Mirror #2 – or – Zip Mirror #3
You shared at least one other doujinshi by Ma-kurou: https://www.hentairules.net/2018/03/27/english-ma-kurou-eromazun-shibuya-rin-ochiru-hentai/
Plastic uterus, at least when John K Peta does it, he’s joking.
I’m not even going to kid with this, but John K Peta’s drawings didn’t gross me out as much as this one.