Crystal tossed back the contents of the cup and made a face. "Ugggh! That stuff is foul!" It tasted like...well, like plant food. Cloyingly sweet manure with a chemical aftertaste. But a nasty little drink was a small price to pay for the body she wanted. As she smacked her lips, trying to work the taste out, her stomach gave a grumble and churned. Abruptly, she released a deep belch, but felt the pressure continue to build. Crystal burped again and placed her hands on her bare stomach, and gasped as her hands sank into soft pudge that hadn't been there a second ago.
It was working! Crystal watched her reflection in the mirror and could see her naked body growing up and out! Her head creeped higher as her bare feet expanded over the wood flooring, and as her twiggy legs lengthened, her thighs and calves thickened with fat and muscle. Crystal had to adjust her stance as her center of gravity shifted and her hips widened. And best of all...
"Holy crap, tits!" Crystal laughed delightedly as her breasts rapidly ballooned outward, seemingly swelling bigger with every breath, from barely-there mosquito bites to budding boobs to huge jugs. She brought her hands up and grasped them as they swelled, just to feel them.
"Ohhhhh my god!" she gasped. They were so sensitive! She could feel them growing heavier and rounder in her hands! She moaned as she kneaded and rubbed her new breasts, and was about to send one hand to work between her thick thighs, when, abruptly and somewhat anticlimactically, she burped again.
The pressure disappeared. Crystal blinked several times and gradually realized that she had stopped growing. She smiled happily at the reflection in the mirror, giving a breathless little laugh as she tried to get her breathing back under control.
It had worked. The woman staring back from the mirror was, well, a woman. Huge, tear-drop tits dominated her upper torso, each capped by wide dark areolas and rock hard nipples. Her midsection had grown thick and a little pudgy, but the her new hourglass figure carried carried it exceedingly well. Crystal craned her neck to look behind her, and yep, that was an ass. A real ass. She turned back to the mirror and jumped up and down happily, laughing as she saw and felt her breasts bounce and jiggle.
She went over to the doorframe, slightly unsteady at first as her balance recalibrated for her new height and weight, and stood against it. She marked the top of her head with a pencil, then measured the mark from the floor. Five-feet-ten-inches. She had grown a full 10 inches taller! Slightly more than she had anticipated, but well within bounds. Still wearing a happy grin, she turned to the clothing laid out on her bed to figure out what the new Crystal should wear.
1) Crystal finishes getting ready and heads to school, and she brings the bottle with her.
2) Crystal finishes getting ready and heads to school, and she leaves the bottle at home.
3) If drinking a little thimble-full of Jumbo Gro felt so good, imagine how good drinking more would feel. Before Crystal can stop herself she chugs from the bottle...