(F to Cow)

“Hey, hon,” Jenna’s voice called from their bedroom. She sounded like she was in a good mood, as ever. “Can you give me a hand?”

Ethan looked up from the couch with a small smile on his face. The formshifter quietly flicked off the television, dusting off his jeans. “Better than that! I’ll give you two,” he said with a smile. He flexed for good measure, only to realize that wasn’t the muscle he’d need to be using.

Jenna was in little more than her underwear and one of Ethan’s shirts, and that was already half-unbuttoned. She grinned towards her love with a twinkle in her eye and a squirm of her hips. “I might hold you to that.”

He swallowed, suddenly aware that his mouth was uncomfortably dry. “Not that I mind, and I’m certainly not going to look a gift horse in the mouth-”

“Horse, bear, elephant…” Jenna let that last button pop free, and Ethan’s shirt fell to the ground behind her. “Whatever you want me to be, I’m all yours. Call it a ‘thank you’ for last week, and a challenge.”

“A challenge?” Ethan smirked as Jenna guided him towards his favorite chair. He looked to her with growing interest. Her slender fingers undid his jeans easily, then got to work bringing him to full attention.

“Yep. Today’s all about you, so I’m trusting you to help me give you the best blowjob imaginable.” Inwardly, Jenna was more excited than she’d been in recent memory. Being changed had felt good, really good—and she wasn’t the sort to let a debt go unfulfilled.

“Mnn, careful,” said the man. “I might just hold you to that.” With that, he began to work his particular brand of magic. Her smile widened as her mouth grew, and her nose flattened out on her face. The girl’s ears took on an elven appearance, and dark spots spread along her pale skin.

Jenna didn’t wait for a further invitation. The girl practically dove upon him, her thickening lips kissing his shaft and a low hum slipping from her throat. Her tongue slipped past her lips to press against his length, and it swelled as he did.

Her tongue was like a balloon being inflated, growing larger and wider with every passing second. It wasn’t long like a frog’s tongue, or flat like a dog’s. She privately wondered just how Ethan was changing her, only for a low groan to build deep within her aching chest.

Ethan leaned back, watching short hairs bloom along her form. He could see the sound building inside her chest, see her body trembling as it built and built towards a release. She just need a little more, and he cupped her cheeks with his palms. “Come on, it’s okay. Let it out.”

“MUHHOOOOUH!” Jenna bellowed, eyes widening in surprise. She pulled her head back, and her long tongue flopped well below her chin. “UH COOW? ROOOLLY?” She bellow-spoke, her right ear twitching. Each moo made her body bulge and

For a minute, Ethan worried that he’d embarrassed her. Then she leaned in closer, giving him a devilish grin that would have been sexy had she not been drooling like an imbecile. She let out a small moo, and her warm snort on his balls made him twitch in anticipation.

“Well, MMOO’M not gonMOO complain,” Jenna chuckled huskily, tilting her head. She took him into her mouth once more, proud of how he reacted to her ministrations.

It was a gamble. Ethan wasn’t sure whether or not she’d like this experiment, but he trusted she’d be able to use it to the fullest. A dog’s tongue might be large, and a frog’s might be long—but there were few things a dexterous or as pillowy soft as the tongue of a cow.

He let out a moan of content as she pressed her massive tongue against his length, only to pull back with a knowing smile. Her face started to stretch into a muzzle, and she used her new thick lips to her full advantage. They pressed around his shaft and tip, sliding up and down in a tight kiss.

Jenna’s fingers curled around him, just barely-there at times, there at others. She knew that she didn’t have much longer: already her fingers were stiffening. She could see and feel the dark enamel of hooves slowly coalescing around her digits.

Slowly, her fingers were forced from around him. She couldn’t hold onto his length with the clumsy limbs of a cow, so she didn’t bother to try. Instead, she returned her thick and bulky tongue to servicing him.

“Where’d you learn to do that?” Ethan groaned. He stroked her broadening head, watching her lose her human form.

“Moo,” she replied. Jenna’s hips swayed, expressing her eagerness to please. Her torso grew heavier and bulkier, and she found herself clopping her hooves against the ground to better adjust her posture. Her shoulders and hips spread wider, and she arched her back as it flattened.

Jenna’s breasts grew in time with her swelling torso. She let out a warm, damp huff, gasping with pleasure at the feeling of her cleavage stretching her bra. It should have been uncomfortable, but something about her bloating hide kept the tight garment from digging too far into her.

Of course, this meant that she was pressing against it, and there was only so much abuse the cotton could take. Unlike when she became an elephant, the clasp didn’t give out first. She’d worn an old bra, and the cloth split clean down the middle. “MooOOO!” She groaned, relieved at the freedom.

Ethan chuckled, realizing that she wouldn’t be much of a conversation partner in her current state. On the other hand, she really was living up to the standards she’d set. Jenna worked him hard, knowing just when to look up and meet his eyes with her own darkening orbs, pulling back whenever she brought him close to the edge.

She moved her tongue aside again, this time pressing the inside of her cheek to the man’s length. Hair spread along her body from head to toe, black along her spots and white along her skin. The soft warmth of her cheeks contrasted nicely with the occasional graze of her blocky bovine teeth, and Ethan quietly enjoyed how her ears drooped whenever she worried she’d displeased him.

Jenna crossed her eyes to look at Ethan’s groin, but soon found the motion difficult. Her head was growing, skull swelling, eyes spreading towards the sides of her head. She let out a huff through her larger nostrils, and when she breathed in she tasted Ethan’s rich, masculine scent.

It wasn’t enough for Jenna. Even though Ethan was nearly on the cusp of orgasm, Jenna knew that she could do even better still. She pulled back to let him bide his time, breathing in gently. The cool caress of air brought him a moment’s reprieve.

Ethan’s hands trailed against her sides, and Jenna felt her backside start to swell. Her panties creaked in protest, and she wondered if she’d remembered to put on an old pair. Given that the elastic hadn’t given out yet, she figured it wasn’t as old as she’d have liked.

Ethan chuckled under his breath as Jenna wiggled her fat cow butt, wondering if it was as uncomfortable as it looked. He decided to ease her burden by pressing her back towards him, letting his magic flow through her, face-first.

The rippling wave of change passed through her, stretching her snout, swelling her upper body, bulging her lower body. With a loud crack, the last of her clothing gave up the ghost. Somehow, her nudity only reinforced the fact that she was an animal.

Ethan felt it was surreal, seeing a cow with a girl’s hairdo bobbing her head up and down his shaft. She kept working him with her thick lips, letting their softness contrast with the sleekness of her blocky teeth. Then she took him into her mouth once more, pressing the underside of her tongue to the tip of his dick. She tilted her head, and let his shaft slip back where it belonged.

As Jenna sucked, her face stretched out and out. Her jaw lengthened, allowing her roomier mouth to better hold her tongue and his length alike. She was able to slide her tongue from his tip down his shaft, all the way towards his full, heavy scrotum.

At the same time, she began to grow a sack of her own—though hers was filled with milk of a different kind. She mooed around his length, and the vibrations of her throat sent a shudder of pleasure through the man’s body.

Jenna noticed the shudder and let out another muffled moo, letting the sound and warmth of her exhalation tease him. At the same time, she pursed her lips a little tighter, careful not to distract him with her cowy breath.

A small tail worked its way from her spine, wriggling from side to side with an almost wary motion. It grew a tufted tip, long and silky dark hairs flicking from side to side. It was like the growth of hair behind her was costing her human hair, and the longer her tail fur grew, the shorter her hair got. It left her with a near-completely bovine appearance, but that didn’t seem to bother her lover in the slightest.

Ethan’s back arched, and he panted and gasped with exertion. Jenna’s cow snout was big enough to engulf him completely, with her bulky lips planted against his crotch and balls. She tilted her head, slowly moving it up and down and sucking on her man’s cock a harder and harder still.

Her long tongue swirled around him, gliding along the sensitive space just beneath his tip. Her bulging, bovine tongue was the softest pillowy haven Ethan could possibly imagine, and her thick drool meant her ministrations never lost their softness.

Ethan tensed again, this time with every muscle in his body. Jenna knew it was time, so she dove atop him, sucking intently, wrapping him in her tongue, nuzzling her large snout against his thighs. And, at last, he could hold back no longer.

Ethan’s hands instinctively wrapped about the sides of her head, and he squeezed his eyes shut, holding his cow girlfriend’s face as close to him as possible. Thick cum swirled through his shaft, gushing into Jenna’s mouth.

Still, she kept sucking, kept teasing him and licking him clean. She milked him for all he was worth, only pulling off when he slumped back onto his chair, a spent and tired mess.

Ethan noticed the weight of Jenna’s head in his lap, and he looked down to find her staring up at him expectantly. It was somehow adorable and sexy at the same time, and he stroked her long ears, mumbling happily. “Gimmefiveminutss, ahm’s gonna sleepbit.”

Jenna’s ears flicked in time with her tail, and she moved up, nudging his shoulder under her head. Slowly, with a surprising delicateness for a cow, she pulled him from his chair, so he could sleep against the warmth of her broad flanks.

Ethan was too sleepy to notice, but that didn’t keep Jenna from giving him a goodnight lick as a quiet, quick surprise. She’d never imagined she could feel this way with anyone, especially as a big, hefty heifer. And yet…

Jenna licked him again, then closed her round bovine eyes, slumbering softly beside her life’s warmth.