Mary could not get the strange canisters with the energy booster out of her head. Maybe it was the faint silver shimmer which looked almost hypnotic to her what caught her attention. But what to do with the stuff?, she thought, There won't be any manual.
The drider girl grabbed one of the bottles and removed it's lid. The gooey silver liquid looked like it was moving by its own. It was a lot thicker than water more like oil. Carefully, Mary sniffed at the bottle but the goo was odorless. Mary poured some of the stuff in the bottle's cap and eyed it one more time.
Without any second thoughts or doubts, that the liquid might be dangerous or poisons, she gulped it down. Bad idea!, she thought as her mouth began to burn. It felt like she had drunk some very hot and spicy sauce. She felt the liquid moving down her gullet. And then her stomach began to cramp and she bend over in pain. Mary caught for air in pain. Very bad idea! Shit that hurts. She let go of the cap and grabbed with both hand her burning stomach. This was the moment when she really starts to cry in pain.
Her heart began to race as adrenaline shoot through her system. Faster then ever it throbbed inside her chest. Mary cramped in pain as her whole body was now on fire. Still in pain, she tensed all her muscles which suddenly started to pulse. Every muscle on her frame slowly started to grow bigger and harder. Below her hands, Mary felt her stomach to shift as it first pulled in when her fat melted away and then pushed again outwards with thick and hard female muscles. In the process, Mary felt the pain slowly fading away and began to enjoy the feeling of pressure which was building inside her.
She felt her muscles pushing against her hard chitin skin, growing denser and more defined in the process. Soon, the pain was fully gone and Mary moved her hands slowly down to her waiting womanhood. She masturbated right there half naked and never felt better, more alive, more energized. With a lout lustful cry she came hard, rocking on the floor in her afterglow.
Slowly, Mary gained consciousness and began to stand up again. She rushed to the full length mirror opposite of the room in a fraction of a second. She must have got even faster. Carefully, she checked out the changes. For sure, this has been a success. The first thing she spotted was her well defined stomach. She owned a six pack, every fitness model would be jealous of. The feeling the rounded bricks of her abs was thrilling to her. All her appendages must got thicker and stronger. Her 4 spider legs looked like dangerous weapons now. Any muscle on her frame was well defined and radiated with strength. With all her arms she rushed over her skin and explored her new gains. This alone made her arousal again.
Using all her willpower Mary resisted to go for another round of self-satisfaction. Instead she turned around locked her gaze on the still opened bottle. If a small cup of the silver liquid has such an effect, what would do more of the stuff to me?, she thought with desire in her eyes. She never felt better before.