Misty's heart races with excitement as she discovers a present bag filled with treats and confetti, convinced she has a secret admirer. Blushing, she feels a flutter in her chest as she thought of who could have left such a sweet surprise for her. But as she indulges in a piece of candy, she soon realizes it's no ordinary treat when her chest begins to tingle and swell. Hand on her chest, feeling her heart pounding and her breath quickening, Misty knows something is happening, something strange and unexpected. She looks down and gasps as she sees her breasts starting to swell and expand as if something is throbbing inside of them. Her red top begins to strain, the fabric stretching and straining to contain her rapidly growing chest. Her eyes widen in shock as her breasts continue to inflate in size, ballooning so massively that her top pops open from the pressure. She can't believe what is happening to her, but at the same time, it feels strangely pleasurable. Her tits grow rounder and harder, her areola becoming darker and more sensitive to the touch. As they continue to rapidly expand, growing bigger and bigger right before her very eyes, her breasts are now so huge that she can hardly see her thighs from her view. She can't help but feel a little alarmed, wondering if they will burst at any moment. But then she remembers the note and the candies. Could they be responsible for her breast expansion? Without hesitation, Misty grabs another piece of candy and eagerly pops it into her mouth. And just as she suspects, her breasts continue to grow and inflate in size, until they look like two massive watermelons dangling on her chest. She can't believe the size of her breasts now, and the pleasure she feels as she fondles and caresses them is indescribable. The bigger they get, the more pleasurable it feels, and she can't help but eat another piece of the magical growth candy. Her breasts continue to get bigger and bigger until they are so massive that they threaten to burst and with each passing moment, the pleasure only intensifies, making her crave more of the irresistible growing candy.