You put you hand to your mouth swallowing a red pill.
"It tastes weird, it must be a new flavor" you said thinking that it was a new type of candy.
Interestingly, there was no effect to show that anything had happened to you.
But wait wasn't that scales on your arm?
Suddenly, your shirt and pants began stretching out as you yelped in fear as you saw scales spreading out from your slender arm to quickly cover your visible body.
You felt cracking in your spine as your body was being extended, and you felt a pulling sensation above your butt.
You rushed upstairs as you slowly grew taller. You ran to your full length mirror in your bedroom to get a better impression of what was happening to you. When you arrived, the skin was definitely a vivid, light crimson colour, except for a patch under the chin which was turning into a yellow.
Your tongue began to flick out. You felt yourself becoming both taller and more muscular. You felt as your limbs weren't fusing or diminishing in any way, but the hands and feet were changing to have sharp, talon claws as you took on a digigrade stance. Also, you noticed a very long, powerful, musculature tail growing out over your changed rump.
You felt a tugging sensation on your face as you went crossed-eyed watching as a feminine m=humanoid mouth stretch out 7", you felt a stinging in your eyes as you thought that you were crossed-eyed for too long you then opened your eyes and looked at yourself in the mirror and you were surprised at what you saw.
You looked at the mirror to find that you are now looking at a 8'4", 560 pound muscled dragoness with FF cup breasts.