Without thinking twice, Mrs. Heather took the recently released red vial and quickly poured it into Justin's mouth as if it were a baby. "Come on justin let yourself go I know you'll love it~" Mrs. Heather said in a sensual tone. As the last drop of the formula spilled down Justin's throat Heather tossed the empty vial to the ground and watched with excitement as her student began his change.
Justin groaned in pain his whole body felt on fire but quickly that painful heat turned carnal. Mrs. Heather watched with emotion as her little student grew taller, his limbs like sticks filled with strong and powerful muscles, a powerful 8-pack appeared on his previously flat abdomen, his pectorals grew, tearing his shirt revealing his new muscular and sexy chest that she wanted to lick madly. Finally, Justin suffered another growth spurt that completely tore his clothes, letting Mrs. Heather see the new body of her student, who only kept his boxers, which now showed a huge member as big as a salami and with huge balls the size of grapefruits stuck to them. "Mmm delicious~" Mrs. Heather thought as she licked her lips.
Seeing himself in the reflection of one of the flask crystals, Justin was surprised to see the sexy Adonis he had become, now measuring 9 feet like Mrs. Heather and with a body just as muscular and sexy as hers, including his face. now he was like a supermodel but not only that now he was symmetrical, masculine, sexy and without any blemish far from that face with acne. His arms had biceps like cannonballs, they had a powerful 8 pack abs and a bull on one perfect V that led to a huge phallic member with huge balls. His legs were huge as hard and powerful redwoods even his rear had become firm and muscular.
"Justin~" Mrs. Heather's familiar voice said with a playful tone.
Turning around, Justin looked at Mrs. Heather with a lustful expression, taking off the only piece of clothing she had left, which was her thong, and then throwing it away, leaving her completely naked, showing her completely wet pussy between her legs and eager for something that only he could give her. "Come justin it's time to start your special class ~"