Been looking for an old Doujinshi for a long time. It was once on ExHentai I think but I've tried every keyword combination I can think of to search for it and I'm pretty sure it got removed from the site.
It was by an artist known for very think figures, BBW by Japanese standards for sure, they were more hourglass but they were thick and had some belly fat. They also tended to have rather stout builds.
The one in particular was a girl and her two friends, ages were not clear but they are somewhere around highschool I assume, but all had similar absurdly curvy figures. The main girl leaves the room for something and while she is gone her dad slips in to greet the girls. He turns the TV to some porn and sits between the two girls and starts coaxing them to join him in masturbating. Eventually the girls are giving him a blow job when the daughter returns. She is angry at what she finds but the dad just pulls her into join her friends. By the end they are all having sex with the father.
The ending page of the comic gives the impression the girls are routinely bringing more friends from school back there to make them part of the harem too as by the end the daughter is surrounded by classmates all striped naked in the home.
I do not recall the name of the artist and I don't think there is any English versions of the work. The only lead I had was it was once on ExHentai but I am confident that no longer is.
Pic unrelated, I don't think this is the artist but the style and quality was around this level as I recall. The girls were much heavier too.
Anyone know of the work I am speaking of?