My novel

https://www.pixiv.net/novel/show.php?id=13324062

Here is the novel I wrote (in Japanese).
This is a porn novel that adorable magical girls fight against evil sexual monsters called "SHADOW SPIRIT". It is parasitize in human and eat sexual arousal of human.

Girls are forced to feel their orgasms that are unbearable. SHADOW SPIRITs use supernatural and bizzare superpowers like that......manipulate paintbrushes, water, Ivy, and so on. They can also give girls pleasure from afar. Magical girls have mighty powers and easily beat them, but they need concentration for using magic, so that forced pleasures are weakness.
To fight against SHADOW SPIRIT, girls are crying, begging, writhing by sexual pleasures that are over capacity for them.

hmm, I'm tired for writing. The rest is for next week. Thank you for reading.