write a story about a shy and smart man named john turning into a confident, attention hungry, sexy, very extremely horny, very seductive, and dumb, but extremely giganticly curvy giggling bimbo named joan with extremely gigantic and ginormous assets that burst through his shirt entirely along with an extremely gigantic and ginormous behind. The changes make him extremely horny and lustful. He is very extremely eager to show off her curves and assets. He is never paniced throughout the transformation. He becomes overloaded with excitement and pleasure as his assets develop. As his behind grows, he cant help but feel euphoric from how good they feel. The changes all take place over the period of 1 year. His clothes change into a tight female swimsuit which accentuates his new curves in all the right places. He is heavily enjoying, very extremely turned on and loving each second of the transformation, finding the changes to be very intoxicating, sensual, extremely erotic to the point of moaning and pleasurable. Especially loving his new assets and how they bounce around and how soft and big they are. Forgetting her old life as she spins around, watching herself twirl in the mirror. Describe each change in extremely immense and specific detail, starting with the mental changes to that of a teenage girl who is hungry for sex, intellect loss to the level of a teenage girl, his vocabulary changing to that of a female girl, and vocal changes. Giggling after hearing his new voice. Reality changes to fit his new life with everyone remembering him this way.