Samus allows indefinite growth.

"Actually... I think I'd like to see how much these puppies grow." Samus said as she rested a hand on the top of her bigger breasts. The AI had told her that she could let them grow indefinitely if she wanted, but the cap on them was unknown. "AI, If I install another upgrade will they keep growing?" Samus knew the chip was gradually injecting her with more and more of whatever was making her cow tits grow, but the AI only confirmed a permanent install would stop the growth.

"Apologies, Miss Aran, depending on the upgrade used results are unpredictable. Though it is possible the growth will be halted." Samus smiled, she was actually getting excited at the notion of more unpredictability, she eyed her boobs even more as they tingled with a familiar sensation. She could either let the growth get even more rampant or install another chip and see what happens...