If she fails she can become an adventure ride at a theme park as you enter a deep dark hole trying to find her Twat. An obese model who is paid by men to eat wants to pile on a further 300lbs (21 stone) to become the world's fattest woman and be completely immobile. Monica Riley, 27, from Fort Worth, Texas, already tips the scales at 700lb (50 stone) but dreams of being too tat to move and is working towards hitting 1,000lb so that she feels like a 'queen'. Her feeder boyfriend Sid Riley, 25, whose surname she has taken despite not being married, spends his days cooking Monica meals and even feeding her 3,500 calorie shakes lavished with double cream through a funnel. He then rolls her over when her 91-inch stomach is full. Among the things Monica - a model on Super Sized Big Beautiful Woman websites - is looking forward to about being immobile to is getting a bed with a built-in toilet which Sid will need to empty. Monica said: 'The plan is to reach 1000 lbs and become immobile. I would feel like a queen because Sid would be waiting on me hand and foot and he’s excited about it too. 'It’s a sexual fantasy for us and we talk about it a lot. He already has to help me get off the sofa and get me out of bed. 'If I lay down after a big dinner he has to help me roll over because my belly is too full for me to roll - it’s a big turn-on for both of us.' Despite their controversial plans, the Monica and Sid are trying for a baby and have endured two miscarriages so far. She said: 'We do plan to have children – there’s nothing to stop me raising a child from my bedroom. 'We would get a nanny in to help around the house and take the baby out and about. 'There’s nothing to stop us raising a child. Some people might think it’s selfish but I’m confident we would be good parents.' Monica had been overweight all of her life and just two years ago she was preparing for bariatric surgery after an ex-boyfriend urged her to shed the pounds. But at the last minute she pulled out of the operation and decided to embrace her figure instead. And since meeting average-built Sid online four months ago, Monica has gained almost 55 lbs (four stone) by gorging on 8,000 calories every day. Monica said: 'The bigger I get the sexier I feel. I love my big soft belly and stuffing myself with food really turns me on. 'Sid loves to cook for me and hand-feed me and I’ve achieved so much since we got together. He feeds me around the clock and I never have to get up to do anything.'