The former Tesco supermarket employee, of 11 years, will launch her modeling career as a size 20 model.
The competition for supermarket plus-sized clothing is fierce. As the Irish Independent reports 50 percent of all plus-sized clothing is bought in supermarkets. Although Tescos are keen to take her on she is also receiving interest from Marks and Spencers and they continue their publicity campaign using "real women" models such as 61-year-old Twiggy.
Mary is due to visit her form colleagues at Tescos this week having returned from London after this weekends "X Factor" finals in London.