how can i get fat

[rory]

i bet my dad 100 bucks that he could not lose 15 pounds before i gained 10. it was an easy bet because there is no way my dad would ever be able to lose 15 pounds. however we just had a family tragedy and he has not been eating and now i am in danger of losing the bet. i need to gain 10 pounds in a few weeks. what should i eat/do to gain weight quickly without feeling like i want to die?