Kang released Lisa from the table she was strapped to, and watched, with a huge grin on his face, as the youth potion he had injected in her body was taking effect.

Much like her brother, Lisa's body started to shake uncontrollably, faster and faster as the potion was changing her metabolism. Her limbs were getting smaller and smaller, her voice was getting more high-pitched, her body soon became chubbier as her baby fat was returning, and she was losing consciousness. In mere seconds, Lisa was transformed into a baby. She crawled out of her nightgown, which now looked huge on her, and looked around. As her mind was also reduced to the mind of a baby, she got scared the very second she saw Kang, and began to cry.

Meanwhile, in a nearby room, Bart had been changed back to normal, and was now running back to the main room, where Kang and Lisa were. As soon as he entered, he saw his babified sister lying on the ground, wailing.

"Oh my gosh ! What did you do to her ?!
-Isn't it obvious ? I tested a youth potion on her, and as you can see, it worked perfectly as well !"

Bart ran to his sister, picked her up, and calmed her down. When she stopped wailing, he said :

"Now that you have experimented on us, let us go, just like you promised !"

Kang's answer was...