A woman in the middle of a city park looks over the dosage of an experimental drug she just picked up. She has her first dosage as she is on her way home. Before she gets home she starts to feel extremely aroused and she starts growing taller. Blinded by sexual pleasure she next dosage and her arousal intensives and her she keep growing taller. Her clothes explode off her as she becomes too tall for them to fit properly. She succumbs to her sexual frustration and starts masturbating in the park. She has an mind shattering orgasm due the cocktail of her unrelenting giantess growth and unending sexual arousal. She picks up the experimental drug bottle and downs the rest of the bottles contents. Her giantess growth accelerates sharply and she outgrows the park. She is unable to concentrate anything, she is lost is sexual ecstasy as she grows more and more gigantic. She masturbates and she grows. She masturbates and grows taller than the buildings around her. She finally orgasms and the arousal starts calming down as she stops growing. She towers over everything as far as she can see.