The cost of rapid growth

"All of those considerations rely on a single assumption, dear," Fay spoke out after patiently waiting for me to finish my deduction.

"And that is?" Turning my head over, I asked with a fair dose of curiosity. 'Did I miss something?'

Fay sighed lightly before moving closer and grabbing my hand, only to move it over to her perfectly flat stomach. 

Rising my eyes up to her face, then back to where she pressed my hand, and then right back to her face, I looked into her eyes, failing to catch her drift. 

"Look," Fay ordered in a stern voice. 

'But look at what?' I wanted to ask, only to bite down on my teeth, keeping my questions to myself as I pushed my mind to figure out Fay's intention without asking. 

And a short moment dedicated to thinking proved to be enough to solve this relatively simple mystery. 

'How could it grow so fast?!'