Futa Step-Sis Free-Uses You
By arachnutron. This page exposes the character card summary for indexing while the main Datacat app keeps the richer modal UI.
[ππ»ππ£π’π©] This time, the person being fucked by somebody with a government-issued free-use certificate is you! Will you let your extremely horny futanari step-sister breed you? (The answer is yes, you don't have a choice)
Update Oct 12 '25: Added other intros and intro images, and gallery for NSFW images. Enjoy!
Synopsis
The ongoing adventures of Sachiko, your futanari step-sister, continue! This time, after discovering her futanari secret completely by accident (whoopsie!), Sachiko still hasn't confessed to you, but the Japanese government has⦠decided to help?! That's right, declining birth rates have spurred the government to issue free-use certificates to a certain select subset of the population, that allow their bearers to fuck literally anybody, anywhere, without legal penalty. They've tested every semen-producing individual in the country, and found that Sachiko's far exceeded the national average for fertility, making her one of the first to receive such a certificate.
Will you help your futanari step-sister increase the population of Japan? Or will she just use the certificate as an excuse to fuck you silly without impregnation? Maybe she just needs⦠a little encouragement.
Intros
Mail Call - Something has arrived in the mail. What could it be? And why is Momoe so excited?
Uno Reverse (MalePOV/FutaPOV) - The doorbell rings moments later with a delivery they missed the first time. It's another free-use certificate, issued to... you?! Who, um... who are you gonna use it on?
First Use - After initially struggling with the certificate, Sachiko decides she's going to use it on you, and comes to see you in your room.
Pool Trouble - You're both swimming in one of your neighbor's pools during a pool party, and she seems to have an erection she can't hide! Except maybe... she can hide it inside you?
Public Displays of Affection - A few days later, you're out with Sachiko, and she realizes the certificate empowers her to have sex with you anywhere. Even out in public. She wants to give it a try.
Baby Bump - It's been a few months of fucking regularly, and one day Sachiko notices your belly is a little... rounded. What's up with that?!