Tagged surprise sex

A lucky protagonist stumbles across a magic book that lets them rewrite the rules.

You have been magically transformed into a girl. Avoid getting knocked up!

You are a pokemon at Engram Advanced University, an enclosed university and university town for pokemon, by pokemon. A large campus with Pred and Pret separate dorms, an entire small campus town with a bar, a club, an arcade, and more, at EAU you can enjoy yourself while advancing your studies. Just be careful, as Vore is very commonplace. Whether it’s professors eating students for misbehaving, or a pred just grabbing a snack that happens to be their classmate, it’s not uncommon to get scooped up in the halls and shoved into some arcanine’s balls. Don’t worry, there are reformers! If your pred decides to use them anyways! Otherwise, have fun getting fucked in the middle of your gen-eds, cus public sex and free use is the name of the game at EAU, with sex just as common as sight as Vore and studying. See how long you it takes you to “graduate!” (Cover art not owned by me, watermarked Iniven 96)

In a world where some people are suddenly stricken with AGS and believe everything they hear - many simply disappear. They are hidden in apartments, toilets, and closets around the world, more often than not used without mercy. These are their stories.

One Saturday you wake up to find that you can change what people consider to be ‘normal’. How do you take advantage of this? And what about your cute girlfriend?

A portal between our world and a fantasy realm has opened, allowing monster girls to enter our reality. To help integrate the two worlds, a service has been offered. Will you accept a monster girl into your life, or do you want to travel to a whole new world?

Endless fun with changing sizes or transforming of any sort. Growing to be the tallest person in town or becoming a thousand foot tall Giant or Giantess, slowly shrinking down to the size of a hobbit or all the way down to the size of a bug, and absolutely everything in between.

Tails is dating Cream. but his heart truly desires her other, the bustly futa MILF rabbit Vanilla. How will Tails go about being with Cream, trying to sneak off with Vanilla, and not getting eaten by Vector or eaten in other ways?

Humanity is long gone. Men and women have disappeared ever since the Futanomicon had been opened by a "genius" and the beasts of our nightmares (or dreams) came to be. Now, only futa monsters remain and struggle amongst each other to survive by fucking each other senseless!

Seth and his four friends find themselves swept into an extraordinary experience that feels too surreal to be true. Initially convinced it was nothing more than a vivid dream, they soon discover the events were real—and the consequences are life-changing. Together, they delve into the mysteries of the Bastion of Desires, unraveling its secrets through a maze of unexpected twists and turns.

You died, but are to reincarnate in weird new worlds, taking on new lives until you find one that doesn't cause you too much distress. But you'd better do it soon, because every time you go back to the world with the hypnotist, you get a new permanent mental transformation, and become more and more like the sluts that you used to hate...

Different smutty tales from the Smuterium: a simulation of all Warhammer universes

Will is given a pair of cute undies by his boyfriend but gets quite the surprise while wearing them out in public.

You and your girlfriend get a hold of a mysterious board at a yard sale. Though you were warned of its power, you decide to try it out. What sort of fantastical creatures will you conjure up?

A collection of stories that all involve a woman getting stuck in a wall, with her head on one side and her genitals on the other. The intention is that some stories will interconnect in ways you didn't expect, or turn out to be the same story, from different perspectives.

Your life had being a humiliating series of events one after another, you are a weak effeminate guy with a micro penis, that alone suck, but today the world shit the bed, a virus had kill 99.99% of all males and 90% of the females... good for you are one of the lucky ones, the problem is the women that survive became stronger and more aggressive, can you survive?

You play a cyborg mercenary, who gets stranded in a dangerous dead-zone after a gig gone wrong. Heavy /impregnation themes.

Luck of the toss can lead to your wildest dreams, but even isn't the only thing you'll be breaking...

You play a human sorceress, in the tales of her adventures across the Forgotten Realms. Heavy /impregnation themes.

A young man convinces his teacher to give him sex for an A, and then things get crazy from there.