Art direction, animation, sound 10/10 cute! However, a bug I noticed is that they would gain weight even if never fed. On that note, I think something a lot of people would love is a way to manage weight so they can enjoy stuffing and milking the girls at any size. I know I get a kick from bloating up skinny Abigail
Also, a way to move the camera and look at the girls while interacting with them would be nice. These characters you've made are too cute to not look at!
I'm really excited to see where you take this project. It's already amazing!