Premise
For one month, a man's household grows by one: his partner's sister, an adult competitive gymnast, needs a place to stay while she prepares for a major event. His girlfriend works during the day, so he is around the house while the sister trains there.
The premise is a classic houseguest setup aimed at adult viewers. Nothing dramatic has to happen for the tension to exist; it comes from proximity, the girlfriend's daily absence and the fact that the sister is conscious of his interest. It is built on attraction to a partner's sibling, a loyalty story told from inside a shared home with a clear end date.
Setting: The couple's home, during the month the girlfriend's sister stays with them to prepare for a competition.
Tone: close-quarters houseguest loyalty test.
Format and episodes
There are five episodes of My Girlfriend's Little Sister Moved In as of October 2, 2026. Each one is a vertical clip of under two minutes, built for a phone held upright, so the full story is under ten minutes of viewing.
The first two episodes are free to watch, and the padlock starts at episode 3: three episodes sit behind the paywall. Each episode picks up exactly where the previous one stopped, so skipping ahead does not work well.
- Episode 1Free
- Episode 2Free
- Episode 3Premium
- Episode 4Premium
- Episode 5Premium
The audio is English only; subtitles are available in English, French, German, Spanish, Italian, Portuguese and Japanese.
Who is in it
The series is led by Lea Fontaine, an AI-generated character created by Candy AI. This is the only series Lea Fontaine leads so far. Other recurring faces are on the characters page.
What is free and what is paid
Free: episodes 1 and 2. Paid: everything after that, three episodes here. The main way in is Candy AI Premium ($3.99 a month if you pay $47.88 for a year, $8.99 quarterly, $13.99 monthly); candy.ai also sells single episodes for 12 tokens each.
Candy's own terms add a caveat worth knowing: "A limited number of candyshorts episodes and tokens are included in a subscription, and further access to episodes is available for an amount of tokens disclosed in the product." The paywall itself promises "unlimited access to exclusive stories", so check the unlock screen if a series ever asks for tokens on top of your plan.
Prices are the US checkout on October 2, 2026; the full breakdown, including renewals and refunds, is in our price guide, and the free tier is mapped out in what you can watch free.
Content notes
Rating, in our terms: adult, not Spicy. The free episodes stop at suggestion; the paid ones are where most regular series show nudity and sex scenes, while the Spicy label is reserved for titles explicit from episode 1. The cast is AI-generated and every character is an adult.
More on how the catalogue is rated: is Candy Shorts porn? and does it show nudity?
Where to watch My Girlfriend's Little Sister Moved In
Full episodes stream only on candyshorts.com and in the Candy Shorts tab of candy.ai. Uploads elsewhere that claim to be full episodes are something else — our Dailymotion check found none, and "leak" pages are bait: what those links really are.
Our take
The partner's-sister premise is one of the most repeated in Candy Shorts, so this series competes with close relatives such as My Girlfriend's Sister Just Got Divorced and My Girlfriend's Twin. What sets it apart on paper is the timeline: a guest with a fixed one-month stay and a concrete reason to be there, which gives the story a built-in clock rather than an open-ended situation.
The competitive-athlete detail also gives the sister a goal of her own, which can make a houseguest story feel less passive. Five episodes is the standard length, so it is a short commitment. If the partner's-sibling angle is what draws you in, Caught Between Sisters frames a similar dilemma around two sisters by its title; if you prefer a committed relationship under quiet strain, this setup keeps the girlfriend's absence at the center of the premise.
Who it is for: Viewers drawn to houseguest and partner's-sibling setups who like a story with a fixed timeframe, and who want loyalty and attraction framed inside an ordinary shared home.
Frequently asked questions
How many episodes does My Girlfriend's Little Sister Moved In have?
Five episodes as of October 2, 2026, each under two minutes long. Episode counts can change as Candy AI adds episodes, so check the date above.
Can I watch My Girlfriend's Little Sister Moved In for free?
Partly. Episodes 1 and 2 are free; the other three sit behind the paywall: Candy AI Premium, from $3.99 a month on the annual plan, is the main way in (its terms say a subscription includes a limited number of episodes), or 12 tokens each inside candy.ai.
Where can I watch My Girlfriend's Little Sister Moved In?
Only on Candy AI: on candyshorts.com or in the Candy Shorts tab of candy.ai, in any browser. Uploads elsewhere are trailers or unauthorised copies.
Who is Lea Fontaine in My Girlfriend's Little Sister Moved In?
Lea Fontaine is the lead character, an AI-generated persona created by Candy AI, not a real person.
Does My Girlfriend's Little Sister Moved In have subtitles?
The audio is English only; subtitles are available in English, French, German, Spanish, Italian, Portuguese and Japanese.
Why does the girlfriend's sister move in with the couple?
She is an adult gymnast preparing for a major competition and needs somewhere to stay for a month. She trains at the couple's home during the day while her sister is at work.
Is the gymnast sister an adult?
Yes. The sister is an adult competitive athlete, and the series belongs to Candy AI's adults-only catalogue of short episodic stories.
Related guides
Partly: episodes 1-2 of every regular series, 246 in total.
Read the guide → Is Candy Shorts porn?Adult content: free episodes are setup, paid and Spicy episodes carry the explicit part.
Read the guide → How much is Candy Shorts?From $3.99/mo billed yearly; $13.99 month to month.
Read the guide → Are Candy Shorts leaked?Mostly clips, scams and malware. The legal free episodes are the real thing.
Read the guide →
