I’m not sure if this is just me but it looks like when you give ranko boobs her boobs shrink when she’s pregnant
Moon company are done! In general characters that expand keep their order if others expand, so since Ina starts bigger she ends bigger too. Ranko is happy to retrieve any upgrades she can get but there's none left for her after the ritual. Rest assured she's still happy to be way larger than she started, and that she lust for any boobs, not just her own.