The Sissy Girlfriend Experiment
Game Information
Developer
jammye.jonesVersion
v0.14.9
Engine
HTML
Release Date
Sep 30, 2026
Last Update
Oct 1, 2026
Censorship
Uncensored
Overview
The Sissy Girlfriend Experiment is a 2D visual novel for players who want a slow, character-driven corruption story with a lighter, playful tone.
Story
A young man living with his sister meets an older woman one night who becomes his girlfriend, while a close friend remains the one person he truly trusts. As their lives intertwine, each of these characters pulls him further into a transformation he did not expect and cannot fully control.
Gameplay
Play unfolds through dialogue-heavy scenes and choices that shape how the protagonist changes over time, with new locations and side characters opening up as the story moves forward. Stats tied to body, mind, and outward presentation shift based on decisions and events, nudging the character further along his transformation, and side activities like reading found books or gambling offer extra ways to influence those stats.
Features
- Hand-drawn 2D art with animated scenes
- A gender-bender corruption arc built around three key relationships
- Optional side systems, including a bookstore and a casino, tied into stat-based character growth
- Group and same-sex content woven into the main storyline
Changelog
v0.14.9
- Hello everyone, the new version is now available. It concludes the Blackmail story, adding more content to interact with the sissy friend and more options during the stepsister's blackmail story. Of course, based on what you choose to do, it can change the outcome of the story.
- There were some bugs reported and gladly fixed! Thank you for reporting those, and if you find one, please let me know!
- I am already working on next month's content: The Mystery Mirror. I'm working on a few stories for it. Imagine this content as "What If..." A minor teaser: What if you had a stepfather instead of a stepsister? Or a stepmother? Or a stepbrother? See where I'm going with it? Unlike the rival system, it won't change or replace any part of the game's story, but rather a vision of what could have happened.
- I've been working on a new comic, but I wasn't able to make much this month; it will come out this year. Until the end of 2026, I want to release a new comic and a new supporter pack (in December, to get along with the month's update. It's a surprise, but you should know it's related to The Docks. That's it for now, and thank you once again for supporting my work.
v0.14.8
- In this version, you will be able to enable a new rival called The Blackmail. (Wait a moment, Jammye! I thought this update was going to be Rival: Sissy Stalker? It is. I started working on the Sissy Stalker character, but I couldn't come up with a good idea for the main character to hang out with the stalker. But... What if they were going through something similar? I thought the Rival: Blackmailer and Rival: Sissy Stalker would work better together. As one Rival with two characters). Depending on your settings, you will find more cuckold content in the early game, while making your sissification faster. If things get too rough, you will always have the option to drop out. You will also meet the sister/stepsister previous roommate (from the Roommate comic), who will be in the same trouble as your character. Together, you will figure out a way out of this mess. The game will tell you when to stop and save, so you won't miss anything on the next update.