You're browsing the dusty store full of strange odds and ends and barely know where to begin looking when you hear a voice from behind you ask," Can I help you?"
You turn around and look down to see a short orange flakey skin man with pointy ears and long ugly looking finger nails. You're a little shocked at his appearance, but somehow you know this guy knows his stuff and decide to tell him.
"Yeah," you nod," A little more than a week ago I was at college when this strange fog hit me and seem to take away all my muscle build. When I got home I found my little brother had packed on a ton of muscles, seemingly overnight. I've been trying to work on this flab," you say and lift your soft flabby belly," But nothing seems to be working. Diets, exercise, all seem to go nowhere.. except to my younger brother who seems to look a little thicker after everyone of my gym sessions."
"I see..." says the strange little man stroking his chin.

What happens?