The flavor that Mary tasted from the vial was like drinking water that was used for flowers. Mary almost spits it out due to its foul flavor but keeps drinking because of her curiosity to see if it works. Once she drained the bottle, Mary put it back in the box for it to fill up again. Mary then left the box on her nightstand and walked toward her body mirror, to see the effect on her.
Dress in her staple ruffled skirt and halter top, Mary looks like she is ready for a photo shoot. Mary grabbed her knee-length skirt from the helm and pulled it up to see the action unfold. What Mary can see underneath her simple skirt is her warm-peach-colored booty shorts that have "Aren't I A Peach" on the back with an emoji of a peach beside it. These underwear are Mary's favorites, especially when the man of the hour goes down on her and happens to read them.
For a moment, nothing was happening. Just before Mary starts to doubt the possibility of the vials, Mary starts to feel flush and warm all around her. But Mary really felt it arousing in her loins. The pleasure was mounting higher and higher than ever before. Not even the one time she found a guy who really rocked her world years ago has sent her this high. At this point, Mary was having a hard time trying to keep standing due to her ramping libido. The only sounds that came out of Mary's mouth were soft moans and groans of sexual urges. After three agonizing minutes of being turned on, Mary fell on the carpeting of her bedroom. The passion has sapped her strength. Her skirt and underwear were getting moist from Mary's girl-cum.
Soon enough, Mary can feel another sensation. 'This is it,' thought Mary, who was too worn out to speak. 'My pussy will grow big enough to play with my toy properly.' Pulling at her soiled skirt, Mary can see some movement under her booty shorts. The bubbling feeling began to flow into her lips, which began to appear as a defining camel toe through the material. Using one of her hands, Mary poked at budding petals, feeling how sensitive and big it getting. The discharge from deep inside Mary had also been ramped up, making the area surrounding Mary look like a swamp. Even the underwear look like it was painted on her instead of it being a piece of fabric. Before she had the chance to get her mega member, Mary's pussy has already filled up the space between her legs and it hasn't stopped.
"Wh-what happening?" Mary's first words after her drink of the vial. Her once simple camel toe has evolved into a great moose knuckle. The stretched shorts not only showed off her outer lips but also the inner ones and her button as well. It was giving Mary such a wedgie that she had to take off the shorts before they got too ruined. With what was left of her strength, Mary got to her feet and stood up from her personal splash zone.
'I can see it through my skirt!' thought Mary when she saw herself in the mirror. Not only it has dominated the area between her legs, but it has also overtaken the area in front of her legs. The lips have lifted the front of Mary's once knee-length skirt enough that it made them look like mid-thigh skirts. Which, due to how big they got, means that Mary can see her greater, outer lips past her shrunken skirt. Mary's once cute, slightly big booty shorts have been stretched out of control and begun to rip in some places. "I-I need to take it off befor-," at that point, the once elastic, comfy booty shorts have exploded from Mary's pussy.
By the time her growth has come to an end, Mary's pussy went below her knees and easily bigger than the dildo that her friend got her. The only thing that the once-long skirt covers now is her clit, which isn't much due to how much it is bulging through the damp skirt. The ceaseless flow from her lips has kept up with Mary's changes, which will saturate her home with the smell of her sex for weeks. Even Mary's lust from her gigantic vag has put her in an all-time higher state of arousal, which limits her cognitive skills and awareness.
So after her massive expansion, Mary stumbles on her way to...