"Moon," said the voice over the phone.
"Listen, you prick... if you call me one more time I'll... uh... ah..." Jen's left hand, resting at her waist, had snaked underneath her shirt and was rubbing her left nipple. As it grew erect, Jen began to heat up, a thin line of sweat forming on her brow. Against her will, the hand under her shirt began to creep down toward her beltline.
"Something wrong, Jen?" on the other end of the line, Kyle's own hand had slid into his pants, excited by what he knew was about to happen to Jen.
"I... m'so... hot..." Jen's fingers had slid into her silk panties and quivered at her entrance. She desperately willed herself to stop, but she was fighting a losing battle, and slowly, helplessly, she began to stroke herself. "AH! Oh, God... I'm burning... OH!"
"Can't help yourself, can you, Jen?" taunted Kyle, beginning to pleasure himself. "You've just got to have something in that... mmf... pussy of yours, don't you?"
"AAAIGH!" Jen dropped the receiver, which clunked against the wall and then dangled on the cord in front of her face as she fell to her knees. Her free hand gripped the front of her shirt, and with surprising strength, tore it completely off of her sweating body. Losing no time, it pushed one half of her bra aside and caressed her breast while her other hand moved in and out of her vagina. "Oh god... something's... happening... to... me..." She was so hot, inside and out... almost like... "No... I'm... in HEAT!"
"Change, Jen," hissed Kyle's voice from the receiver. "Be the bitch you are."
Jen was shivering from head to toe despite the overwhelming heat. Something felt wrong about the breast she was desperately kneading... it seemed... bigger, somehow. Her bra strap was digging into her back as her hard nipples pushed her bra to its limit, swelling her. Her hands and feet felt cramped, too... there was a pain, as if her palms and the soles of her feet were rebelling against their natural shape.
"Please... AH! Help... help me, Kyle... I don't... mmmf... want this..." she panted at the dangling receiver, still masturbating furiously.
"Change, Jen," came the merciless command.
"R...rrrraaaAAAAGHHH!" Jen arched her back as her spine began to crackle with the sounds of forced transformation. The pressure was too much on her bra, and it finally gave way to her swelling tits, snapping and falling from her body. Her breasts were twice their normal size, and yet firm. A small symphony of pain and pleasure all down the front of her torso announced the development of six new teats, nothing but dark nipples at first, which quickly began to swell outwards into voluptuous breasts.
"Carn't... shtop... AARGH!" Jen's voice was becoming lower, fangs erupting from her pained gums as her forehead began ever so slowly to slope back, putting pressure on her brain. Her ears twitched and contorted, beginning to form points.
"No... no... norg... noooghh... NOOOOGGGHH!" tears streaking down her face, Jen cried out a denial with every thrust of her own hand into herself. Fur was slowly pushing its way out of every pore of her skin, beginning near her crotch and spreading from there. She shook and trenmbled as her muscled gained mass, transforming her into a powerhouse. Her pants split at the seams, but the waist clung to her still, the elastic panties hanging on tenaciously. Her toes burst painfully from her shoes, which were soon split totally in half and fell away.
A small nub of flesh formed at the base of her spine and began to push the rear of her torn pants and panties down her shapely ass. Jen fell forward, her spine encouraging this new, comfortable position, her contorting face held close to the floor and her rear held high as a tail slowly, ever so slowly, grew out of it, writhing and twitching.
Jen was beyond words now... the pressure of her changing skull ruled out anything but the terrible pain and indescribable pleasure of her transformation and her heat. Her eight full breasts jiggled as her whole body quaked at the climax of her change, her fur a full pelt now, as her lush tail finally pushed her pants and panties off of her waist and down to her knees. She kicked them off, wanting nothing more now than to be naked.
But the most dramatic part of the change was still to come. Jen screamed as her face began to push forward, teeth aching within her jaw as they became sharp.
"AAAAIGH! AAARRRRGGGHHHH! OOOOAAAAAAAAA! OOOOOAAAAAAAIIIIIRRRGGGH! AAAAARRRROOOOOOOOOOOOOOOOO!" She drooled transformative saliva onto the floor as her scream became a bestial howl of lust.
The completed she-beast finally removed her hand from her crotch and licked off her own scent. Finally she was complete... but there had been no climax. Her clawed fingers were not enough... she needed something to fill her... she needed... a mate. And she needed one now. Nothing but human smells all around here, human sounds... but that was all right. She would make a mate out of one of the humans around here. After he changed... She rubbed her full breasts against each other, relishing the thought.
Kyle hung up, having orgasmed himself at the sounds of the forced transformation. Jen was nothing but a bitch in heat now, he knew, and it was all because of him. He wondered who her first mate would be...