Her 49-year-old partner Philippe who she met on a dating site for plus-size people was encouraging her to reach her goal, she said.
"I think he'd like it if I was bigger ... he's a real belly man and completely supports me," she said.
To put on enough weight, Ms Simpson will need to eat 12,000 calories a day, which is six times the recommended daily intake for women.
In order to pay for the enormous amounts of food she is eating her weekly grocery bill is $815 Ms Simpson makes money by running a website where men pay to watch her consume fast food.
Woman aims to become world's fattest
"I think he'd like it if I was bigger ... he's a real belly man and completely supports me," she said.
To put on enough weight, Ms Simpson will need to eat 12,000 calories a day, which is six times the recommended daily intake for women.
In order to pay for the enormous amounts of food she is eating her weekly grocery bill is $815 Ms Simpson makes money by running a website where men pay to watch her consume fast food.
Woman aims to become world's fattest