Gwen found herself messing with her spell-book to try and alter her figure into something more curvy. But instead she managed to completely ruin it by making herself massive on accident. Now she's become a 'Land Whale' in her eyes, unsure of who'd love someone so big. 
(She is depicted at Age 20) 

Gwen Tennyson | Ben 10 | Lard | Fat | BBW

You noticed that Amy had been eating a lot more often that usual and was even wearing a new belly button ring too, but one day the ring pops off and her body surges with fat!

BBW | Burps | Blob | Futurama | Weight Gain

Loona has found herself more involved with the Gluttony Ring more often than not and her figure is starting to show it too. But other than being disgusted by her new weight, she embraced it as she came to find that some sinners find this sort of thing attractive.

Loona but she's a BBW (Helluva Boss)

She's so much stronger than she letting on! As you tussle with Ribrianne, she takes control of the battle in a heartbeat, overpowering you with the power of love (and Lust)
How will you be able to handle her might!?~
[Artwork by DarkGoku69 on X and DeviantArt!]