The Island of Dick Slingin' Demon Girls

[Synopsis]
In order to solve the mystery of "Futanarification Mist" Professor Shiro makes her way to an island inhabited with oni (demons / ogres). There she encounters them, and decides to stay there for a while.
It would seem that... under the guise of "research," she is totally and utterly obsessed with penises...

[Characters]
Professor Shiro
A beastgirl specializing in the research of dickgirl folklore. Height: 143 cm

Red Oni
A dick slingin' futanari demon girl. Height: 215 cm

Blue Oni
A dick slingin' futanari demon girl. Height: 220 cm

[Futanari Type]
The clitoris is connected to the urethra and developed.
No testicles.
Ejaculation is possible.
The penis can be stored (up to the individual.)
Demi human demi god species (like oni) have more futanari
Anthros are generally only beastgirls.

[Contents]
20 newly drawn main pages (the first 4 pages are colored)
+ 39 pages previously released on patron sites
+ cover and contents page, etc.
= 66 total pages

PDF format
2150x3036 resolution

* Unlike the sample images, the actual pages use white / black bar censoring.