Excuse me, dunno if it's the right place or if you are even open to any suggestion at all, but i'll just ask anyway first and apologize later
could you add balls and their size customisation perhaps also a correspondingly growing cum volume just seems really odd to not have any or almost any mention of them as if we're running around without them... xD
And thanks for the game it's really fun, looking forward to it's future~ 
Best regards Oni~