This is a story where a girl makes a contract with a succubus, and has her semen squeezed until her penis is exhausted, and is made to understand through reverse anal sex.
It is in 16 page full color manga format.
An obese and unpopular man relies on rumors around town.
I’m going to make a naughty contract with a mega-gaki succubus.
However, he can only ejaculate inside her body.
So she kept trying to make him cum without ejaculating.
In the end…it’s finally become a story.
There is also a reverse anal element.
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ver.1.01 Added images without dialogue