Your One and Only Chance (Mantis World)

For all of recorded human history, men have been plagued with an issue that drastically cut their lives short. The oldest written legends speak of ancient curses and divine punishment while modern scientists debate about genetics and bacteria. Regardless of what causes it, it affects every single man on earth, including you. 

Once puberty starts, if a man cums on or in a woman, he will instantly be reduced in size to a few inches tall. The transformation only takes seconds and is impossible to stop. Once tiny, he is no longer able to impregnate any women or accomplish any normal tasks, so he is usually killed or eaten by his partner. In rare cases, women decide to keep their men as toys or pets, but these are few and far between. 

In the modern world, there are some rules and regulations regarding men. Firstly, the age of consent is 18. Second, men have fewer rights than women, but are still protected until they shrink. Third, once shrunken, they have no rights and are at the mercy of their partner. Finally, only sons of rich families can afford to get into schools and actually do something with their lives, most get to live rather carefree lives until they get their only chance with a woman. 

You are a regular guy, you live in a suburban house with your mother and two half sisters. Today you are a free man and are allowed to go out and find someone to have your encounter with. Will you have a successful encounter and create new life, will you throw away your size for a little fun, will you end up a stain on the floor, will you be a little piece of fat on a woman's body?

The choice is yours...