Posting to see if anyone has sauce on this? Exhentai, g-e-hentai, Google image search, TinyEye, Saucenao and IQDB bring back nothing.
The monster girl is called Tessa/Tesa or something similar, and she ends up fucking the human guy that takes care of her.
I've read it before, but can't think of the name. It's driving me crazy. Cheers.
[Ribyuhki] Hydrog Tranquillity (Bessatsu Comic Unreal Monster Musume Paradise Vol.4) [ENG] [4dawgz + Thetsuuyaku]
Found it with:
>monster_girl dark_skin english
A shame the other works aren't translated, the art is great.
CAN SOMEONE GIVE THE SAUCE PLEASE
>>14549524
You beautiful bastard, Anon. I could kiss you.