Maturing Bubbles

"Maturing Bubbles" is the seventh episode of the seventh season of The Powerpuff Girls, as well as the revival, and is the 143rd episode of the entire series overall. The episode of scheduled for April 15, 2019 on Cartoon Network.

The episode focuses on Bubbles becoming a teenager from a freak accident of the Aging Ray, the Professor's latest invention.

Plot
The Professor introduces his latest invention to the Girls: the Aging Ray. Testing it out on an apple, the Girls are amazed by what it does. Curious, Buttercup wants to try it out on something else, but the Professor says that after a single shot, it needs to recharge for 24 hours, much to Buttercup's dismay.

On the following day, the Professor heads out, giving Buttercup time to go into the lab and use the Aging Ray. Unfortunately, Blossom catches her with it, leading them to fight over it. Blossom pulls it out of her hands, leading to accidentally pulling the trigger, ricocheting the blast around the lab. As Bubbles comes in, the blast hits her aging her 11 years older as the age of 17. Worried, Blossom and Buttercup approach their sister, who simply has no memory of what happened as the effects of the ray have also effected her mind as well. In shock, Blossom is worried that they have aged her, although Buttercup sees the upside that having a teenage sister will be amazing as she thinks teenagers "are able to do stuff as adults do", in which Blossom dismisses.

Sneaking her into their room, they decide on whether or not tell the Professor about Bubbles, but when the Professor returns home the teenage Bubbles shouts out, "Hi, Daddy!", giving away their presence. She then flies down to greet him (as well as saying that she hasn't seen him in five years). In the lab, Blossom and Buttercup explain what had happened, much to his dismay. Buttercup gets ready to shoot Bubbles with the ray, but the Professor forgot about telling them that it only ages things forward, so he will have to make a reverse-Aging Ray to change her back, which could take a few days, much to Blossom's disappointment and Buttercup's elatement. The hotline rings, then Bubbles Then a day later. at Pokey Oaks, the classmates stared at Bubbles, which makes her feel awkward.