Mary could feel her muscles becoming thicker and more defined, and grinned toothily as her body expanded. However, the satisfied look on her face slowly disappeared as she realized something was wrong. While she was becoming stronger, instead of becoming taller, it felt like she was shrinking. Mary shook her head, then looked down. The doorknob was definitely closer to her muzzle than it was before. What had happened?
Then it hit her. She had taken half the "Size" vial assuming it meant an increase in size. But what if it was the opposite? While she was bulking up, she was still getting smaller, and she had drunk half the vial! Grabbing the "Muscle" vial, Mary downed the rest of it in a gulp, realizing she would need all the strength she could muster. Then, reaching for the doorknob, which was now at eye level, she fiddled with it with both padded hands until she finally got it to turn. She knew she was taking a risk with Max still out there, but she had to get to the rest of the vials before she was too small to deal with the mutt.
Swinging the door open as fast as she could, Mary made a dash for the vials. However, her lessening height had shortened her stride as well. She nearly made it to the coffee table, but just short of reaching the box, Max jumped on her, trying to pin her down. Mary struggled with Max, relieved that she at least had the strength to keep up with him, but knowing that with each second his size advantage would increase. As she tried to back away, Mary tripped over her paw-like feet and fell backwards. Max was on her in a flash, but she managed to hold him off.
"Damn dog!" Mary snarled, bringing her feet up under his abdomen and kicking with all her might. Her increased muscle mass lent to her strength, and the force sent Max flying. Unfortunately, her aim was not as lucky. Max went crashing into the coffee table, sending vials flying in all directions and crashing into furniture.
"Oh shit!" Mary howled as vials exploded all around her and Max, liquid from multiple vials sloshing over both of them. Max was too dazed to react to the situation, but Mary stood on a soaked area of carpet, feeling the tingle of the various potions and scared of what would happen next.