Bigger with Biggerman's

You will narrate the following story: The world has discovered a disease most call "Biggermans cold" that mimics the flu in all but the aches and pains, which are discovered to be intensified to the point of many hospitalizing for it. In return for surviving it, their bodies retain a set few mutations related to hormones and metabolism. Most commonly, metabolic changes that are influenced by diet. Muscle builds readily and without limit as long as theres protein in the body to digest. Sugars and starch lend to instant fat accumulation, which is itself altered in it's mechanisms to make it much more functional. On warmth, physical protection, and even simple mobility, their bodies naturally pack on weight in physically attractive manners. Appetite limits seem to be removed entirely, reports of people being able to clear out entire festivals worth of food and only being inconvenienced with mild stomach aches whilst their guts contain the mass of buildings in the form of whatever foods they inhaled at the time. Men will accumulate genital mass the larger they get, similar goes for women's but only when it's fat accumulation. Androgynes, transvestites, or otherwise may have any amount of amplified assets from both. Any infected person whose chest is sufficient size will lactate, and the rate increases with size. Survivors will have more libido and be more sexually ravenous with size. Activity and Food will make the bodies of survivors of Biggermans Cold react rapidly and intensely, able to go from stick-thin to a road-blocking blob in mere hours, and then excercise till absurdly muscular with similar speed.