Kick Buttowski: Surburban Daredevil

Jackie Wackerman (or Wacky Jackie as she is called) is one of the supporting characters from the show Kick Buttowski: Suburban Daredevil.

Jackie is a cute and sweet new resident of Mellowbrook of 12 years old. She became obsessed with Kick in her debut appearance in "Obsession: For Kick", later stalking him due to her being his "number one fan", as well as being the president of his fan club, etc. Gunther falls in love with her in "For The Love Of Gunther", although his love for her isn't shown in any other episodes. She is a classmate of Kick and Gunther.

Sold! (Season 2, Episode 10a)
In the episode, Jackie ripped her shirt and muscle-bound under t-shirt.