...I'm sorry, what?
Look, I was trying to find the option for Corporate. Which means that I was looking for the option wherein every woman in the company's higher echelons all get extremely fat for some reason. Possibly, the company even has a history of women getting fatter mostly in proportion to the rank within the company.
So, in that case, an office drone at a smalltown branch might get hired as a slim, conventionally attractive woman. The head of that local branch would, apparently by coincidence, be an ssbbw. And the people working in the main office in New York are all at least very chubby.
Even people who are hired usually seem to end up, somehow conforming to the proportional fatness of their place within the company. Slim women are still hired, but they end surrounded by heavier women, and a culture of fatter people being more important, until it feels normal. They stop questioning it and start to allow themselves to get fat, until they match the size of their colleagues.
With promotion comes more money, but also a bigger office, on a higher floor, with fatter coworkers and more constant access to junk-food. The slim, conventionally attractive woman who was an office drone at the New York head office might, one day, be joining the board of directors. But, if that is the case, along the way she will probably:
Join the company thin, but quickly find herself surrounded by very, very chubby women, until the morning that she forgets to care about her bathroom scales telling her that she's hit the 200lbs mark.
Get promoted, and put in an office in a higher floor, with an expenses budget for business lunches every day. She starts taking business lunches at least twice a day, because it just seems to be how everybody wants to meet. She barely has time to check her weight, which the scales telling her that she's up to 300lbs now.
Get promoted again, thanks to her many successful client meetings, getting a much bigger salary, a much bigger office on a higher floor, and a much bigger expense budget. Seeing how the real pro's do it on her new floor, she starts having her business lunches brought to her fancy office, so that she can fit in more meetings per day. If she had time to care what her bathroom scales said, she still wouldn't be able to find out. Partly because she couldn't see the numbers anymore past her waist, but mostly because her scales only went up to 350lbs, not 450lbs like she is.
Get promoted again, because she's impressed some very important people. She gets a new office, bigger and better, with easy access to the luxury free buffet. She even gets her own personal assistant who is actually disturbingly thin when she starts (actually, she's 200lbs) which soon changes as she indulges often enough at the buffet with her new boss to get quite chubby (actually, she gains 100lbs). Our main character also gains little weight, but she pays little attention to irrelevant details, like "650lbs". She is finding it increasingly hard to get to work, however. That's why she's trying to work towards the built-in apartment offices on the top floors.
Get promoted again, joining the live-in board of directors, with her own, huge office-apartment. They have video-conference for meetings, so she doesn't actually even need to leave to do any work. There is even a service elevator for take-out deliveries so that she can have a decent amount of food brought to her while she's in the meeting. Her personal assistant (now weighing 450lbs) is actually the one to fetch the food trolley, to pick up the take-out. In fact, most days, the main character only moved from the bedroom, to the living room for conference calls, but she soon realised that the other board members were taking the meetings from their beds. She started doing the same thing. Now she doesn't leave her bed. Although she no longer has any idea what her weight is (900lbs), she acknowledges that she couldn't get out of bed anymore if she tried. Luckily, her personal assistant has moved in and she hired a live-in nurse for the two of them. The nurse is worryingly skinny (200lbs, actually) but they'll soon have her eating better...