Exercise and eat right, you'll pack on muscle which is the only healthy way to gain weight.
If your trying to gain fat cuz your underweight eating fastfood is not the way to go. there such things as healthy fat which gain from eating like nuts and stuff. you just got to increase your calorie intake,,,,, that does't necessarily mean you should eat fast food and stuff. Its better to gain weight eating healthy foods than fat ones
all you can eat buffalo wings
take a jar of peanut butter, chocolate fugdge and marshmallow fluff and after mixing it roll it into balls and deep frye them. Eating those will make you big and fat just like momma likes it.
Goddamned feeder fetishes...sorry, bitter fat chick who wishes to be skinny here.
get a referral from your family doctor to see a dietitian they're easily covered by insurance or health care
Eat fast food twice a day. And for dinner eat a huge combo meal after 7 and go right to sleep. Every time you eat, take a nap. Sumo style.
I dont want to be mean at all and this is not a doctors office. TOS expects U to get medical opinion from an M.D. or dietitian. Good luck.