The concept is interesting and the game indeed feels great. I'd like to suggest adding a choice in Alex's room when she asks if the bed wouldn't be more comfortable than a chair. If no, leave things as they're now. If yes, make her sit on the bed and if (size=fattest) make the bed break under her weight. Also I quite don't understand how the option "get some help" works. Tiffany or Alex come and "help" the heroine to get unstuck however calling for help doesn't really change anything in my opinion. Feels like you still have to spam combo rest + pull forward. I'd be nice to rethink help mechanics. So, why won't I give 5 stars? Because of bugs. Sadly, I have to admit that some of them are even gameplay breaking (you can't get Zachary's reaction via speaking to him when you're fattest inside his little backstage room.)
Below I'm posting the list of bugs I've found. I hope it will help you fixing the game.
Anyway, keep up your work, you have potential for even longer titles.
1.A play house
You find yourself inside a brightly-colored pretend home that looks like it would comfortably fit a family of dolls.
Error running script: No parameters passed to SetMultistate function - expected 2 parameters
2.The play house doorway
Error running script: Attempt to set state to 3 for outfit_1 (max 2)
3.Speak to Zachary
Error running script: Object reference not set to an instance of an object.
Great game with some great mechanics the only problems I have is that there aren’t much options to interact with people, the game session seems to end fairly quickly, and that someone the weight just goes away immediately after leaving a room, aside from those it’s a pretty good game