If someone gave you $ 1 million to gain 100lbs of fat as fast as possible:

[Army of One]

Link me to any source where you find that a skinny person needs 5000 calories to gain weight. 

There are people with LEGIT metabolic disorders that need 4-5000 calories to even maintain weight, I watched a documentary on such a woman who hated the disorder as everyone thought she was anerexic.

[MP]

Heres a better question. What if you did it and the prize giver didnt pay up?

Have my septic tank pumped out and dumped into his house.

[ksa_triceps]

Yeah why not, it would be more fun going to the gym in a Pagani Zonda.

[Parker]

One would have to pay the person afterwards, to make sure it's 100 pounds and not 98 pounds...
Or pay in increments...a smart person who would issue such a challenge, would pay in increments, because they know that the money would be used to get more food, therefore, the person wouldn't have 1 million after gaining the weight---only the 100 pounds...

[Papper]

An enviable position...rare that people cannot gain fat...

Of course i gain fat like everyone but im ecto. Easy too loose fat and can't gain muscle lol

And i dont eat too much either because i feel like shit even tho i dont gain a ton of fat

I cant see how my constitution could carry 45 kg fat and probably some muscle on top of that..

[FREAKgeek]

Not everyone could put on 100lbs of fat. Genetics schmetics.

[Deicide]

Not everyone could put on 100lbs of fat. Genetics schmetics.

The theory goes that anyone can get lean so anyone should be able to get fat too, in theory.

[shiftedShapes]

The theory goes that anyone can get lean so anyone should be able to get fat too, in theory.

If they actually ate the food.  I imagine, however, that most ectos would be nauseated by the quantities of food required to gain 100lbs of lard.

[Deicide]

If they actually ate the food.  I imagine, however, that most ectos would be nauseated by the quantities of food required to gain 100lbs of lard.

That's why they are likely Ectos...

[shiftedShapes]

That's why they are likely Ectos...

yeah that's part of it, the other part is lighter bone structure and often I think a greater tendency to increase activity with higher caloric consumption.

[Dr Dutch]

The theory goes that anyone can get lean so anyone should be able to get fat too, in theory.

Of course. 3000cals equals 1 lbs. Easy to do.

[Doug_Steele]

Doughnuts, chips, ice cream, gummy savers, Burger King, Waffle House, Wendy's, Honey Buns, Mountain Dew (Pop),  PS3, X-BOX 360, Posts on GB and have the fun of taking it off. 

Eating in bed and sleeping on candy wrappers.