Bob and Joyce had been dating for nearly a month. Long enough to get matching jogging suits complete with biker shorts and fanny packs. Joyce had her long red hair tied in a ponytail while Bob had his shoulder length blond hair in a shaggy mop in a slacker surfer style. The funny thing was despite looking like a stereotypical beach bum Bob had never been to a beach.
Stopping to watch the chaos in the park, Joyce suddenly doubled over clutching her stomach, an unusually deep groan escaping her lips. She immediately brought her hand up to her throat, feeling a lumpy ridge beginning to form. She looked over with a horrified expression at Bob who was looking in shock at her crotch. The tight spandex was beginning to bulge outwards, forming a skin tight sheathe around an unmistakeable protrusion. His shock at her transformations did not last long as a sucking sensation between his legs caused him to cry out in an unusually high pitched squeal.
Joyce's thighs and legs bulge and stretch as they gain muscle even as Bob begins to lose height from his own transformation. The hormones kick in and she embraces her boyfriend, sticking her tongue into his mouth. She revelled in the sensation of her boyfriend's nipples brushing against her shrinking breasts. Her hair was shrinking into a yuppie style even as Bob's was growing out into long wavy locks. Bob's chest bubbled outward violently, nearly knocking Joyce off of her feet and bringing her back to her senses from the hormone addled state brought on by the transformation. She realized that her boyfriend was now the spitting image of a teen beach bunny with cleavage that was threatening to tear her otherwise oversized shirt and the painful pressure of her horny member against her too tight panties made her realize she had become a teenaged yuppy. Quickly checking her compact she found that she was complete with a little goatee and a douchbag ponytail. Where Joyce and Bob had stood was now Joe and Bobby.