>>26042
There was a manga on that topic I think by "kago shintarou"
I think woman would get very bloated and feel cramps like she wants to poop but can't. that probably could feel pleasurable or painful
as if she had huge dildo inside of her ass which can't get out

Eventually she would eventually die because of starvation as she woud lose appetite and become anorexic.
Although she could last for quite along time like that.