I have been pondering this idea since I played the game. Also, congratulations and consolations to all who actually know what STARLESS is! If you are reading here, I can safely say, that you have reached the bag's end of moral depravity in the world of hentai and eroge!
A few notes in the disclaimer to be warned of:
1st - The story will include Blood-related Incest, R***e, *Futanari, Male on Futanari, Sexual Slavery, Extreme Moral Degeneration, and other myriads of fetishes that were featured in the Series; the entire list of Fetishes featured in the work is down below.
2nd - All female characters will have sex only with MC or some of the Futanari's in his harem. Yeah, MC is totally morally depraved, but also extremely jealous and wouldn't ever let any other man even look at his woman.
3rd - No NTR or anything even remotely similar.
4th - As mentioned, the story will feature a Futanari character, probably only one. And no, MC won't be getting fucked by the futanari. (His ass is safe, hurray!)
5th - MC will be the only Male featured in the sex scenes. All females and futas that are his Harem Members, Sex Slaves of his or his Harem or are their playthings will have sex only with MC, between each other or with toys. Some playthings would probably be thrown to the horse if I feel like writing that scene.
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Sexual Content: Ahegao, Bukkake, Excessive Semen, Sexual Slavery, Vaginal Sex, Anal Sex, BDSM, Bondage, Deepthroat, Cunnilingus, Enema, Multiple Penetrations, Anal Toys, Dildos, Lactations During Sex, R*pe, R*pe Involving Drugs, Male on Futanari, Piss Drinking, Sexual Devices, Cowgirl, Doggy Style, Incest, Blood-related Father/Daughter Incest, Blood-related Mother/Daughter Incest, Blood-related Sister/Sister Incest, Handjobs, Erotic Electrostimulation, Group Sex of Multiple Females and One Man, Solo Man Featured in Sex, Heroines with Public Hair, Milking, Missionary Position, Pissing, Piercings, Scat, Female Domination, Male Domination, Body Writing, Sexual Cosplay, Footjob, Futanari on Female, Futanari on Futanari, Mindbreak, Inflation, Cum on Food, Genital Piercing, Human Cattle, Double Penetration, Triple Penetration, Pregnant Sex, Human Branding, Sexual Blindfold, Sex with Sleepers, Huge Insertion, Vaginal Object Insertion, Anal Object Insertion, Gag, Sexual Corruption, Body Piercing, Linked Piercings, Outdoor Sex, Female Ejaculation, Scat on Others, Pissing on Others, Sex in Public Places, Boobjob, Standing Sex, Handcuffed Sex, Lesbian Sex, High Amounts of R*pe, Bimboification, Petplay, Threesome, Loli, Underage (most probably in several jurisdictions over the world, not really sure, at least from the view of the Law in the Continental Europe)
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PS. Read it at your own risk; I am claiming no responsibility for the psychic effects or trauma that reading this novel may or may not caused you. All scenes in this work are fictional, and they never happened. Read the tags in properly before reading this story.