Love the new update, and really appreciate the effort that goes into this project. Especially with the house items being bugged in the beginning, but being fixed within hours. Amazing.
I'm in love with the skill tree and I wish they would be expanded. Even something like having a feedee skill tree added would be great. These are just thoughts and curious as to what others think. If anything I'd keep the existing skill tree and just add in the more specialized ones while you level your main tree. I also think it would greatly increase replayability if you had to make choices with the skill trees, so you can try new things.
Feeder skill tree - Like if your a feeder you could have like 3 or 4 branches you could go down to specialize in certain situations. Like 1 could be having more fattening dates when you go out, or can be more persuasive. Another could be better at cooking, like having access to more ingredients and sneaking snacks to girls. The third could be more intense home feedings/force feeding situations or more intentional use of the auto-feeder. Love the auto-feeder, but it doesn't really do much right now. Make it a feeding skill branch and now you've got something. The fourth could be specific to OFats, like earning more money, more live stream situations, managing multiple girls at once etc.
Feedee skill tree - If your a feedee you could specialize in branches that increase your stomach capacity, ability to stay at my day job even while fat, stronger resists to your feeders, more strength so your mobility lasts longer, more charisma to influence what your feeders do or even to turn non feeders into feeders, earn more money on OFats, maybe even being able to slow your gains.