You take her hand into your own. But, before she realizes it you yank her arm straight into your now wide open mouth, slurp her arm in, and chomp down on her head. You pull her entire body(large stomach and all) upwards, as you stretch your now distending throat back.
She almost slides down your throat, still with a shocked looked on her face, as you gulp down her firm breasts, clothes and all. But then you come out of your seemingly senseless swallow at the size of her large belly. You force your jaw to expand far beyond what you ever have before and the loud cracking and such over whelm your thoughts as the pain overwhelms you.
Once again you snap back into your primal swallow at the taste of her breasts on your tongue and slowly but surely your mouth completely covers the digesting bodies of the other 2 girls in the redheads round belly.
Finally you get to her waist which goes down without any resistance, mostly because the current size of your jaw, and her legs go down like spaghetti on the back of your throat. With one last swallow, your eyes close and you moan with satisfaction. You look down at your belly and see that is massively large, covering about a fourth of the room.