My Girlfriend’s Little Sister Moved In: Candy AI’s month-long temptation

A man’s girlfriend has a sister who competes in gymnastics, and she needs a place to stay for a month while she prepares for her biggest competition. She moves in with the couple, stretches in her room every morning while the girlfriend is at work, and notices exactly how the boyfriend looks at her. She does not mind.

Is everyone in the series an adult?

Yes. The official title only refers to the birth order of two sisters: the gymnast is an adult athlete, the couple are adults, and nobody in the story is anything else. Candy AI states that every character on the platform is an adult, and all of them are AI-generated rather than filmed. No creator twin is credited on this title.

A month under one roof before the big competition

This is a temptation story with a built-in timer. The competition gives the sister a reason to be there and a date when she will leave; the girlfriend’s working hours leave the house to two people every morning; and the attraction runs both ways from the start. The tension comes from loyalty, not from any mystery, so the series suits viewers who like slow-burn cheating dilemmas in a domestic setting.

What the platform does not describe is just as important: whether the girlfriend finds out, how the month ends and how the competition goes are all left to the five episodes.

Access and price

Tokens cost $9.99 per 100, and Premium includes 100 a month. In September 2026 the plan ran from $3.99 a month on a yearly commitment to $13.99 for a single month; the full pricing guide covers the details. The paid episodes are explicit, and the free pair establishes the situation.

My Girlfriend’s Little Sister Moved In Candy AI and related series

Stories about a partner’s family are a steady theme on the platform. My Girlfriend’s Step-Sister Caught Me Staring is the closest match, a boyfriend caught looking at his partner’s sister and drawn into a private game. My Girlfriend’s Twin tests a boyfriend’s loyalty with an identical twin’s visit, and Got Stuck With My Girlfriend’s Stepmom moves the test to the girlfriend’s stepmother.

Verdict

A straightforward, well-signposted premise that does not pretend to be anything else. The free episodes are the right way to judge it, since they show the dynamic before any tokens are spent, and the ending costs 36 tokens. Strictly for adults, and best for viewers who enjoy the loyalty-test format.

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