Image imported from derpibooru 
Original Description:
 
This piece was commissioned by colonelrockrits. The idea was to turn dragon student Smolder into a tubby piggy, as a sequel to Ember becoming a cow. She may be grounded for now, but she’ll get back in the air once pigs fly.
 
Stage 1: Smolder: What a pain. All this pony food’s giving me a gut.  
Stage 2: Smolder: Is it me, or are my wings feeling heavier than usual?  
Stage 3: Smolder: Wait, what happened to my claws? I’m no pork chop!  
Stage 4: Squeal Smolder: Er, maybe I am.  
Stage 5: Smolder: Who cares about wings, anyway? A nice mud puddle is all I need!  
Cow Ember: Hey! How come you’re so happy about it!?