Nat grabbed the red pill and popped it in her mouth, swallowing it in a single glup.
"Bleck." grimaced Sarah, who noted a weird, meaty aftertaste.
Suddenly, she fell to the floor, cleching up her body in pain as the pill's effects kicked in. First, her abdominal region hardened up as she spontaneously developed a six pack. Next, Sarah's glutes and thighs firmed up and toughened with solid muscle, spreading to her lower legs as the muscles bulked up. It shot back up into her chest, her modest B cups puffing up with muscle mass as they became something resembling rounded guy pecs. Her arms suddered, and then bulked up as her biceps and triceps got so ripped that the ripped her shirt sleeves. Sarah's neck was next, throbbing with an intense bulge of powerful tone.
When the pain subsided, Sarah got in front of her mirror and gasped in shock: she looked like a lady body builder!
"Sarah?" her mother called.
"Oh crap." Sarah said, realizing her voice had dropped several octaves.
The girls frantically put the pills in the egg and stuffed them in her dirty laundry.
"Honey? Are you oka-"Sarah's mom said right before she dropped the glass she was drinking out of.
"Mom, what's going o- OH MY GOD! Sarah, is that you?" Andrew asked.
Sarah sweated bullets that gave her muscles a sheen.
"What happened to you?!?!" her mother and bother shouted at the same time.
"Uhhhh.... well....." Sarah said as she explained what happened.