The Sissy Girlfriend Experiment v0.6.6 by Jammye.jones, The Sissy Girlfriend Experiment is a game about you will start with a male character living with his sister, during a special night you met an older woman which becomes your girlfriend. You also have a friend (which you can choose the gender) who is the only person that you really trust. As the story goes on, each of those characters will play a part in your transformation.​

Updated: 2021-02-27
Release Date: 2021-02-27
Developer: jammye.jones TFGameSite – Patreon
Censored: No
Version: 0.6.6
OS: Windows, Linux, Mac
Language: English

2DCG, Text based, Male protagonist, Animated, Masturbation, Female domination, Corruption, Transformation, Sissification, Futa/trans, Trap, Anal sex, Oral sex, Vaginal sex, Gay, Group sex
1- Extract to desired location.
2- Click on “executable_name.exe” to start playing.
where exactly in the store you need to buy a phone if there are only clothes and hairstyles and only a couple of views?

You’re not the first person to miss it. It’s called the “Robot” which is a parody on Android (phones) but I think most people assume it’s literally a robot. You can’t buy it at the start of the game, though.

Maybe this is a good time to post a small walkthrough/guide I put together while I was playing last month. It’s mostly obvious stuff, and is lacking because I didn’t explore all the game’s content, but should be useful to some people. Let me know if I missed anything important.

Daily Tasks:

– Dare board: If you started with the “Mommy’s Little Boy” option, you’ll have early access to the Dare Board game (normally you have to wait and buy a “Robot” at the mall, weeks into the game). But you don’t need to rush through it or prioritize it. It’s not that connected to the early parts of the game.
– Jobs/money: You won’t be able to sign up for all of the jobs until the 28th day. Jobs are a source of money to spend on things to complete tasks. But the game is usually patient or forgiving if you don’t have enough money on short notice; you won’t be permanently locked out of content. Still, try to earn money whenever you can. Besides your job, later on you’ll be able to earn small amounts of money at the Clinic and the Closet when you have free time.
– Arousal: The main use of high arousal is to complete dare board tasks. High arousal is usually a side effect of raising your sexual skills. Its drawback is that it makes you more likely to fail your sister’s task, or fail to raise your intelligence or a job skill. As a bonus, if you fall asleep at max arousal, usually your intelligence will fall 1 point, and you’ll be able to choose whether to get that point back or raise a different stat instead. Lower arousal back down regularly by either masturbating to ejaculation, or playing a game, which are only possible later in the day. Keep in mind the full arousal meter is actually bigger than the 10 icons that are displayed.
– Recommended daily flow for the early game: Clean house if your job is maid, or The Course if it’s another job -> Today’s task from your sister, if it’s available -> Study: General topics (with meditate too, it’s possible to max intelligence after around 10-20 days, at which point you can switch to another skill, prioritizing the Hairdresser skill once it’s unlocked) -> Gym if you want to raise strength -> Meditate (only until intelligence is maxed) -> Job -> Lower arousal if you have time. If you’re low on time because you had to talk to or meet a character (or any other activity) you should probably prioritize making money and your sister’s tasks.

Character Interactions (minor spoilers):

– Girlfriend: If you skip talking to the girlfriend on Wednesday, she’ll refuse to visit you on Saturday, thus delaying everything by a week. Otherwise, most Wednesdays you’ll be given some task, often buying something from the mall (it will show up in the list once she tells you about it). On Saturdays, resisting doesn’t have any effect on how events unfold or how your girlfriend views you; it just lets you raise your willpower, possibly raise your rate of MtF transformation, and possibly receive a chastity belt as punishment.
– Best friend: The early conversations with your best friend are optional and don’t affect much besides your willpower stat. Depending on your choices, she has more of a role later on.
– Sister: You can choose her personality initially. If she’s the evil sister, you also need to do tasks for her to avoid losing money, but it’s not hard. Regardless of which sister personality you chose, she suddenly turns nice around day 28 (assuming you didn’t put off the girlfriend’s scenes). If you want to experience her non-repeatable content, after you start to transition and raise your sexual skills, do her tasks so you can spend Friday night with her and then click on the bottom-most options.

Timeline / Tips (some major spoilers):

This numbering is based on the assumption you don’t put off the girlfriend’s events.
– Day 20: Sneeze n’ Cold opens at mall.
– Day 28: Clinic opens, player’s MtF transition starts. Cloth n Clothes at mall replaced by Hey Pretty Lady. Femme Desire at the mall and the VIP area of the Closet are accessible once you increase your breast size, I think.
– Day 31: Start of the final training arc with the girlfriend (asked to pick between 3 different stories from her).
– Day 62: The day you can break up with the girlfriend, if you have 15 willpower and choose “It’s over! I’m dumping you!” (Note that if you start with neutral willpower, it takes a minimum of 25 days to achieve willpower 15.) If you broke up with her, then Dominance Online becomes accessible, and dates with the best friend start. No matter what, Wild Snu Snu opens at mall.
– Secondhand info I may have wrong: To get a pussy, you need to break up with the girlfriend, and then do all the mistress’s/master’s tasks in Dominance Online to obtain the catalyst. To get extra large breasts, you need to work at the clinic, or you need to disable cuckold content at the start and then complete the sissy school.
– 95 new images for the GF story. From Bodybuilder contest to Tiffany’s mansion.

– 107 new passages:
– 14 new tasks for stepsister/sister (bad ending).
– 14 new events for friday night (stepsister bad ending only).

– Fixed: Bug related to the sister/stepsister’s Friday night.
– Fixed: Bug related to genitals (yes, again).
– Fixed: Can’t play all night long anymore (computer).
– Fixed: Bug during the Reporter DB

22 new DB tasks:
– Based on jobs with different choices (106 new passages).
– 81 new images for those 22 tasks.
– Xmas task with new outfit.

– Fixed: A few typos.
– Fixed: You won’t be taken to the sex shop while searching for furniture.
– Fixed: You can’t get a DB Task without a mobile.
– Fixed: Bug at Pretty Lady if you gain pink panties at the Sissy School.
– Fixed: Reset button is now under the avatar to avoid misclick.
– Fixed: Bug related to genitals.

123 new images:
– New images for The Gym (All three characters).
– Fixed: An issue which the game would recognize or ignore MC wearing panties.
– Fixed: Removed a few words considered offensive. Please, let me know if you find more.
– Fixed: Meditating will charge one hour only instead of two.
– Fixed: Added icon next to avatar with explanation about other icons.
– Fixed: Blank page when trying to talk to the Bodybuilder with Body under 24.
– Fixed: Missing Image for “The Closet”.
– Changed: Icons for the closet and the bedroom: “v” for selected and “.” for unselected.


– 172 new passages reaching an end to this path of GF’s story and ‘New SiS’war.
– Different endings and options are based on your choices and the character’s build.
– Meet the women council. Is your fate in their hands? Or are theirs in yours?
– Meet Tiffany in her mansion with her past.
– Make a choice and live with it.


142 new images:
– New images added to GF story. It goes from the first weekend with Hank to Gf’s birthday party.


– Across the story, a few conditions changed. Some still ask for good/evil while others ask for submission/dominance.

– Fixed: A bug where the red medium buttplug wouldn’t show in your inventory.
– Fixed: Image missing when sleeping.


New Avatar UI:
– Background removed, skills and stats added.
– Cleaner UI with more information, click on your name to check your profile.


New Room UI:
– Buy, change, and win objects to customize your bedroom.
– Items: Chair (10), Desk (9), nightstand (9), bed (10), painting (11), decoration (9), carpet (9), curtain (9), wall paint (9), and floor tile (9).
New Store available at the Mall and a new section available at Wild Snu SNu to buy furniture.

New Computer UI:
– You’ll be able to see most of the items you buy in the game in there: Mobile, dildos, toys, rewards, and decoration items that you can win along with the story.
– Study, Porn, Games, Find a job, and Dare Board moved to My Computer. It allows a cleaner UI and easy to find what do you have to do while leaving the main screen for messages, social, and actions.

New Bathroom UI:
– Looks cleaner than before and shows items you acquire during the gameplay.

Domination/Submission system:
– During the GF story, the MC will be able to develop dominance or submission. This new feature will allow you to make new choices and give the story more variety.
– 14 new passages to develop dominance or submission.
– 28 new passages with options along with the story (more in the future)
– Changes: Some parts changed. Submission/Dominance will play what Good/Evil used to do for a few options such as the possibility of breaking up with the GF and becoming an online mistress.

63 new images:
– Sissy School: Training with Layla
– Sissy School: Weekend
– Back to your former mistress

52 new passages:
– New events during the week: if you’re playing with the stepsister there’s a chance of getting her doing something in the afternoon. This can lead to a conversation that can lead to new options.
– Conversation with Sister(Good/Evil) and Stepsister: After certain events she will comment about what happened.

– Instant Dick: This item was removed from the game for now. It will be changed to something useful in the future.

– Fixed: When you come back with the GF the story will play properly.
– Fixed: You can be a whore or get back with the GF. Not both.

Stepsister’s story:
– Four more weeks of fun with the sister/stepsister with different paths to follow. The blackmailer continues to threaten her, and you have her fate in your hands. (135 new pages).
– Each week will have two different paths to pick. You may found items that can be useful to save your sister/stepsister.
– Your choices will choose her destiny.
– Week one: End a marriage or Pay a debt.
– Week two: Ruin a birthday or gift a present.
– Week three: Trouble at the Clinic or at the Motel
– Week four: Choose her fate.


Stepsister’s story:
– Added 88 new images.
– Fixed: Black screen if you miss chat with GF during training week.
– Item: Nurse outfit when you complete an event.

Wild Snu Snu different payment:
– Added: 05 images for the gloryhole 01 for the punishment.
– Changed: Punishment: Time 16h00 to 14h00.
– Changed: Punishment: Blowjob skill 5 to 4
– Changed: Punishment: Group skill 0 to 2
– Added: Reminder on Friday if you didn’t do it.
– Added: BJ during the week will increase skill by 1.

– Fixed: Job UI for Hairstylist, Housekeeper, Personal Trainer and Nurse.
– Fixed: Last payment while working as Nurse.
– Fixed: Closet bug related to Graduation Dress.



Download For ALL VERSION

Keywords: Download The Sissy Girlfriend Experiment Game.