The Adventures of Gyno-Star
The Adventures of Gyno-Star is a webcomic created by Rebecca Cohen. It started in 2010 and is a superhero parody. The main character is Gyno-Star, a feminist superheroine. While the comic does promote feminism and equal rights, it is also meant to be funny, as it is gag-per-day.
Anna Rexia uses a machine to make fat women skinny, but eating cheesecake completely undoes its effects.
The sexualization on Gyno-Star is undone, but it gives her an average body at first.