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Your sister is a genius! But it's unfortunate that all of that mental energy goes to making her life easier or her body fatter, usually both at the same time. Her chef bots are selling well, though you doubt anyone else has three actively cooking at all times to keep them fed. Let alone developing a weight gain pill on top of that.

A festive point and click adventure game where you solve puzzles and grow bigger! Find the 15 candy canes and outgrow your sister in this adorable growth game!

Jessica, Ellie, and Maewin have grown a lot, and Ellie in particular has crushed quite a lot of the city. There’s not much left to out-grow except the island itself, but at that point, these growing giantesses are getting pretty close to the edge of the atmosphere.

Jessica is watching the news when she finds out that her old friends Ellie and Maewin are coming to visit her. Why’s this newsworthy? Because both Ellie and Maewin have somehow grown into giantesses, and are keen to show off their new size to Jessica. Better yet, Ellie wants Jessica to grow with them!

Ellie and Maewin are spending a boring summer day when something amazing happens. While trying to reach some high exercise bars, Ellie discovers she can make herself grow bigger, and soon, Maewin discovers she can do it too! What will these two sisters do with their newfound power?

One day, your sister calls you into her room, and asks you to hold her hand. Hesitantly, you grab on, and a sensation flows through you. Are you... shrinking? And what's more, she seems to be getting stronger too. Just how much of your size is she planning to steal, and how strong will it make her?

One day, your little sister wants to show you something. She quickly begins to grow right in front of your eyes, and very quickly your little sister isn't so little anymore!
(All characters are aged 18+)

John thinks his sister looks a bit taller today, but thinks nothing of it. However, she and her friend have secretly gained the power to grow at will, and plan on teasing John with this~ The question is, just how big do they want to get?!

A girl tries out special growth milk that makes you bigger and stronger in seconds! And her older sister is blown away by it's effects!

One day, Samantha’s breasts start growing and leaking milk. Her sister accidentally comes into contact with it, and her breasts start growing and leaking too. What can the two sisters do about their expanding breasts, and how big will they get?

When returning home from a 3 year university course, Ryan’s sister has turned a 180. She’s gone from being a plump and bossy teenager to a fit and pleasant adult, however with the help of some new growth protein, just how much stronger will she get?

Amy and Michael are two step-siblings left living together. As time goes on, Amy falls in love with Michael's cooking, and starts putting on weight and getting taller. Question is, how fat will she get?