Kia could already feel her stomach begin to poke out a little. It wasn't quite the size of Reiko's, though she'd certainly reach that point if she continued to drink. Startled, the girl would remove her lips from the breast with the small 'pop' noise. She looked down at her belly, seeing that it was almost half the size of Reiko's. "O-oh my..!" she gasped, rubbing over it just as Reiko was doing. The feeling was good. Even her breasts were starting to grow, fighting to burst from her D-cup bra. "Th-that was fast!" milk still dripped from the corners of her mouth.