Looks Like Pinkie Pie got caught up in Twilight's gassy fun. This was a commission from MysteryL.
DOWNLOAD LINK: http://adf.ly/1nO8FW
My Furaffinty: https://www.furaffinity.net/user/n30nf4n/

Note: I know some of the stuff in this video looks a bit wonky, but I tried my best to fix it.