Mary dives her fingers into the box, dragging out a bloodsucker with a shy little giggle. If she's gonna go, go all the way! Popping the cork on that vial Mary pushes it to her lips. Glup.. Ahh! That's enough, she drains half and holds the vial in her fingers to stare at what she drank. Her stomach gurgles and her pants creak, staring at the round bouncy form of a flea printed on the vial.
Gloombf, Mary's left eye swells to the side, displacing an inch away from the other on her face. Adopting a blackish tone as it changes. "O-oh, ah.. Hell, I coulda picked better.." Gloombf! Her right eye follows, nose swiftly smoothing forwards into a makeshift snout. She grunts and squirms, her back is really bulging up on her! Mary's pants strain and buckle with so much plump and rapid growth. Holding the vial carefully in front of her as her arms swell up, and her forearms grow further away from her.
"Oh god this is happening, this is really happening!" She cries out as her upper lip droops and reshapes. Two buggy appendages push her cheeks wide and hang beneath her head, neck devolving into her back as an abdomen takes shape on her hunched form. What's more, the box is getting bigger! So is the vial! Oh shit, she's shrinking too! The vial slips from her changing hands and spills on the wooden floor beneath her, as her pants slide down off fuzzy insect legs. Squishing narrower like a real flea! Standing comfortably on the tips of her toes, her changes halt.
Human hair trailing down her very much flea-ified face, still human enough to keep her hair. She pokes and rubs her new features and extra legs, she's transformed into a flesh-colored flea the size of a cat! Thinking consciously, for now at least... She shudders excitedly and plots her next move.
"Holy fuck I'm a REAL bug..! Wait till they see this... Okay, before they get here I gotta.." She trails off lost in thought before she..