Nemis and Deonpup had an idea to make Robin get a giant butt, both of them can't deny that it's not wrong to like big butts. Robin already got a big butt, but it could be BIGGER! as how Deonpup explained it by holding his tiny front paws wide apart like how people exaggerate when they say they catch a fish 'this big'. So the plan was how would they get Robin to drink this butt expansion potion they had acquired for her.

"Hey Robin! I got that energy drink that you wanted me to buy for you! It wasn't easy finding 'Fennergy', so I bought crates of it." Nemis said as he walked towards Robin with a glass of her favorite energy drink in it. Nemis had bought both of her favorite flavors mint and strawberry, luckily the butt expansion potion had the same color as the mint flavored 'Fennergy' so it could be mixed in without problems. "Thanks Nemis, I have been all over town trying to find my favorite energy drink!" Robin said hugging the panda between her cleavage and smooching his nose, nearly making Nemis spill the drink on the floor. With Deonpup watching the whole scene from the side with much amusement and worry because the plan could fail. "You're welcome, here's a glass of the mint one." he said handing it to Robin, Robin started drinking from it, thinking it tasted weird. "Yuck! What did you put in this drink Nemis?" she asked, her butt already starting to grow and strain against her tight shorts, slowly tearing and ripping them apart. "I don't know what you're talking about... *whispers* Nice job Deon." he said as Deon stood there with a smirk and a devious chuckle as Robins butt continued to grow, her shorts now having almost turned to a thong with how much the shorts had torn around her butt.

Original: http://www.furaffinity.net/view/21038151/

Robin © me
Nemis ©  Nemis
Artwork and Deonpup ©  Deonwolf