This is a really fun game and has me hooked! The weight gain routes for the characters are definitely my favorite! I'll go ahead and throw out some suggestions I have for future updates. Apologies in advance if some of this has already been suggested or planned:
1. Weight Gain Route for NPCs: It would be wonderful to see other NPCs like Maris be able to have a weight gain version of growth when you assist them, especially Orchid. I would love to see her get big and beautiful! <3
2. Belly-Centric Growth Route: I think this growth route would be a lovely addition! One that focuses on the character's belly, making it more and more bloated as they level up, with the rest of their body getting a tiny bit bigger alongside it (i.e slightly bigger thighs, booty, and boobs), but of course, the focus would be just how huge their belly becomes!
3. Inflation Growth Route: Not sure how possible this one would be, but I thought I would mention it anyways since I'm also a sucker for ladies fwoomping up. x3
4. Romance/Intimate Scenes: I am aware that sex scenes will be added. I think it would be great if more wholesome scenes (i.e. hugging, kissing, cuddling, etc.) could also be added for those who aren't as much into sex scenes. If nothing else, they would be quite complimentary to the sex scenes and help accentuate the bond between you and your squad.
5. Inflict Growth on Enemies: The ability to inflict growth on enemies would be cool! Instead of giving them positive effects like normal, you could inflict a special negative variant on them, such as attacking less often from being to fat or something like that.
6. Belly Sound Effects: I really love belly gurgle sounds.~ Would be really fitting for the weight gain and/or belly expansion growth route if it was added. uwu
That's my two cents! Hope it isn't too lengthy. Only other thing I can think of are a couple of the AI images have the dreaded "6 fingers" thing going on in them. I don't know if you want to touch those up or not, but I just thought I'd let you know in case you wanted to. All in all, wonderful game, I really love the characters and look forward to future updates. Keep up the great work!