At the lab, Bonnibel was sat at her wooden desk, mixing elixirs together, adding drops of acid and checking the heat through a thermometer.
"Hello, Marceline."
"Hi, Bonnie. Do you have anything that'll make me alive?"
"Sure," Bonnibel said. But she knew it may be difficult. she got up and looked at her bookcase which was lined up with various different science gear and a few fat volumes of world creative and magic stuff.
After a while it was complete, lucky for Finn Marceline did become fifteen.
"You'd go back to the age you were bit." Bonnibel explained.
Marceline winked at Finn.
"Great," she smiled. "Now i can do this!" she kissed Finn passionately.