The premise
His girlfriend's younger sister, a competitive gymnast, moves into the flat for a month while she trains for the biggest meet of her season. The girlfriend is out at work through the day. The sister has clocked how he looks at her.
That is the setup and the five episodes work the awkwardness of the arrangement. Everyone in it is an adult, and nobody in it is real.
What is free
The first two episodes are free. You need a Candy AI account, but the free tier is enough for both and asks for no payment details.
After those, the series continues into its adult episodes and the paid tier takes over. Five episodes in the public catalogue. Two free, the rest on the subscription, with no legitimate free copy of the later ones elsewhere.
How explicit it gets
Candy Shorts series differ in how far they go, so we rate that on a 1-5 scale rather than lumping them together. This series is not rated yet, so there is no number here and nothing on the page should be taken as one.
The structure is the reliable part: free episodes set it up, the paid continuation is the explicit half.
Where to start
Make a free Candy AI account, open Candy Shorts, and find My Girlfriend's Little Sister Moved In in the series list. Watch the two free episodes, then decide whether the paid tier earns your money. That is the whole decision.
A Woman’s World – The Last Man On Earth
Date With My Stepmom
Got Stuck With My Girlfriend’s Stepmom
I Dated My Best Friend Mom
I Picked Up a Hitchhiker
My Bachelor Gift was My Fiancée Mom
My Best Friend’s Bride
My Girlfriend’s Twin
My Stepmom Needs A Plus One
My Stepmom’s Weekend