Chapter 1 - Three Headed Fun

Bored. She was bored. It's been so long since the last time she felt that particular emotion, that she almost forgot it's name.
Still, there she was, right at the peak of her heat cycle, draped on her bed, the only piece of forniture in the whole camp big enough to hold her colossal body, playing idly with one of her plate-sized, inverted nipples.
Her Chief-Husband was off somewhere in the vast plains, playing commander with his little Legion soldier. After asking for permission from her, of course. And, while she was starting to regret that decision, she could agree that her boy-toys needed some distractions every once in a while. 
Nyeele growled softly, before sitting up, the titanic mass of her round belly and plump breasts shifting and starting a series of groans all around her. Her Beta-Husbands were strewn around her, each and every one of them asleep and very, very sore. The closest one, a young, virile Lapine, whimpered softly. So much for breeding her like she needed. Her Uber-fertile, needy multi-womb needed a lot of sperm to work it's magic, and that quota was most definitely not met, much to her frustration.
But with Mayiigh and his sturdy babymaker so distant from her aching womb, she had to do with her... softer husbands. 
How the 7-feet-tall, grey-skinned ogre currently nursing an ice pack over his groin could be called soft eluded her, but that was not the point.
Finally she stood up and stretched, arching her back, yawning soundy. Almost ten feet of towering, supple flesh covered in soft, downy golden fur, the Tauren chieftainess was truly a sight to behold, her cat-like muzzle relaxing back in a toothy grin as she strode to the door of her wooden hut.

Just as said door was thrown open by a very familiar minotaur, with a torn vest and ruffled up fur.
"Nyeele! I need your help, we...!"
"Ah, Husband! Lucky me, no time spent in looking for you." The Minocow interrupted her Alpha-husband, and couple steps were more than enough to reach him, before lowering both her hands on his shoulders, squeezing lightly. The muscular, buff commander of the Imperial Legion looked like a child before her. 
"In dire need of you, I am. Other, puny husbands were... disappointing." Smiling, she lowered her head, playfully nipping at his right ear. "I need breeding, Husband..." She whispered, her voice low and needy. "I need filling. I need babies." Given the closeness, he could certainly smell her heat, her need. Hear the possessive growl under her words. "I need you inside me."
Mayiigh gulped hard. He faced Nyeele during one of her breeding frenzies in the past, and he felt torn between arousal and good, old-fashioned panic. And Duty! That's why he was there, after all. "Wait, Nyeele, wait! We... We found something out there!" He took a step back, still inside Nyeele's reach but out of the "immediate danger" zone. Hopefully. "Something?" She tilted her head to the side, curious, the various golden hoops piercing her hears tinkling together, her innate curiosity replacing her hormone-induced lust, if only briefly. "What something? Show me, Husband!"

"What...is...that?" The Tauren stood before the huge creature, roaring and bleating at the legionnaires who were struggling to keep it still, various rounds of rope around it's necks and front paws. "It's a Chimera. We found it during our sweep of the borders." Nyeele licked her lips, studying the twelve feet long, two-headed creature. The tan, leonine head was emormous, pointy teeth and feral eyes, it's muzzle still reddened by blood. The white, caprine one was more streamlined, but equally big, both mounted on a red furred body not unlike that of a lion, if not for the long, scaled, lizardy tail, tipped with a snake-like rattle. And definitely male, judging the pair of huge, fuzzy balls that hung between it's hindlegs, right behind a furry sheat big enough to cover at least two feet of delicious cub-making cock. Just what she needed!
"Husband! Early, my Nameday has come!" The Chieftainess grinned once again, her heat returning in full bloom. Her right hand dived bewteen her thights, stroking the engorged, slimy lips of her cunt, a needy moan escaping her lips. Her nipples stood to attention, fist-sized pearls of aroused flesh.
"Stand back, Husband. Could be dangerous." "What? No,it's safe, we tied it up pretty tightly..." He was silenced by a finger put to his muzzle.  A drenched, heady smelling finger. "Danger from me, not him." Still grinning, she pressed a small, surprisingly soft kiss on Mayiigh's brow, before approaching the Chimera.

The two-headed beast stopped growling, eyeing the Tauren as she approached. She smelled good. She smelled female and hot and ready, and before he even knew it, she was sinking her hands in his mane, petting him like a cat. "Good boy, aren't you? Good boys get reward, mh?" The Lion head purred softly, the previous rage forgotten...for now. Meanwhile, the Chimera's goat head sniffed at her intently, poking her vast thights with it's nose, before diving between them, stroking her overheated muff. "Mmh..." She moaned. "Straight to point. I like it." Nyeele lowered herself, squatting on the ground and bringing the beast down with her, spreading her legs to expose her drooling cunt. 
The Chimera lost no time before diving forward, his goat head sniffing, stroking and licking her folds, while Nyeele guided the lion head to her bosom, where the beast closed his mouth around one of her nipples, like an overgrown kitten, still purring. "Yes, yes. Mama got you. More, more!" She stroked both heads at the same time, reveling in the feeling of the goat's long tongue deep in her love canal, lapping at her juices like the proverbial man in the desert.
Mayiigh took a few step back, leaving his wife to work on calming the beast like she did in the past with other threats to the camp, signaling his men to let go of the ropes and retreat, leaving the huge and plump Minocow space to work her magic. Some stayed near the scene, stiff bulges tenting their pants, eager to witness the mating between the aggressive, horny man-eating beast and the Chimera.
Nyeele kept caressing the beast, shivering lightly as the goat's rough tongue worked wonders on her overheated pussy. A couple tugs from her hands were more than enough to detach the other head from her breast, pushing it upwards to shove her tongue in the lion's mouth. Her first coupling with a two-headed partner was only leaving her hungry for more. 

While she was keeping the beast occupied, her free hand sneaked to the Chimera's undercarriage, lovingly stroking his fur while looking for something harder to grasp. And then, she realized that not only her birthday came early, but apparently Christmas too. A low, delighted moan escaped her mouth when she found not one, but two sturdy slabs of hard flesh protruding from the beast's sheat. They were built mostly like a dog's, more than a foot long, red and angry-looking, with nice girthy knots starting to bulge at the bases, drooling with heady, clear precum. The Tauren stroked one, then the other, more than eager to have those inside her. Preferably at the same time.
"Come on, Big Boy, time for real fun!" She shoved the Chimera away briefly, just for the time needed for her to reposition herself on all fours, shaking her ginormous ass and presenting herself to her double-headed, double-cocked mate, who took a long whiff of her behind before surging forward to mount her, thrusting his hip forward in his mating frenzy, his front paws digging painlessy in the soft flesh of her shoulders.
The horny Tauren laughed, before reaching backward to grasp one of the cocks, lining it up so the nex thrust forward would impale her nice and deep, and when it happened the strong push made her engorged nipples grind on the rough dirt under her, only adding to her pleasure.
With her tongue lolling out of her mouth, she submitted to the relentless assault on her cunt, moaning loudly when the beast bottomed out against her cervix, sixteen inches deep inside her, the knotted cock fitted snugly against her puffy lips, the other one flopping against her asscheeks, lathering them in musky pre with every pump of the bleating, hissing beast's hips.
"Fill me more! I want cubs! Many cubs inside my belly, yes! Yes!" Drooling freely, with her face pushed against the ground, she reached backward once again with both of her hands, spreading the lips of her fertile cunny, before guiding both the cocks to her entrance, preparing for the next push.
And it was Glorious.

Three howls rose to the sky as the three-headed assembly roared in pleasure, Nyeele finally finding some satisfaction since the start of her heat cycle, feeling her walls stretching around the twin cocks deep inside her. She was no virgin, of course, and no stranger to double penetration, but her usual lovers weren't as vigorous as the beast railing her cunt like his life depended on it. And she loved it. 
The mating was starting to get messy, Nyeele couldn't (and wouldn't) stop her moans nor the wet, squelching sound of hard flesh on soft meat, her love juices dribbling down her furry thights and pooling between her spread knees, still nailed to the ground. And if that wasn't enough, most of the legionnaires originally tasked with keeping the Chimera at bay had freed their cocks, jerking off while still at a safe distance from the three-headed-beast-with-two-backs.
The Tauren could feel her bestial partner's dual penises swell, edging close to a glorious climax, and she wanted every last drop inside her fertile womb. Planting her hands firmly on the ground, she started pushing back against every stroke, her eyes rolling back inside their sockets, pleasure literally blinding her.

She was made of stern stuff, and her welcoming pussy was used to battering-ram sized cocks, but she still screamed like a virgin during her wedding night when the twin knots of her lover slotted inside her during one of the strokes, quickly inflating to seal her cunt, tying the slutty kitty-moo bitch to her stud.
"Yes! Fill me, you beast! Knock me up! Knock me up!" Her roar reached the heavens, probably scaring some angels to death too, as she thrust back one last time before the Chimera exploded inside her, delivering gallon after gallon of steamy, strong cum directly to her cervix. Her orgasming cunt milked the cocks for all they were worth, her muscles tightening in a vice-like grip. The pressure alone opened up her womb, the potent cream flooding inside, painting her baby-maker's wall in white. The beast purred and growled, hips still twitching as he pumped the Tauren full of his cubs, her belly already inflated by the monstrous amount of spunk inside it. Even with her plump and soft belly, it was still noticeable, a testament to the beast's manliness.
Nyeele's trembling limbs finally betrayed her and she dropped to the ground, stifling a whimper as the Chimera tugged on her abused pussy, freeing his dicks with a sharp pull. 

As Nyeele rolled on her back, the beast sniffed briefly at her pubes, before taking off, fleeing the scene like Satan herself was at his heels, unmanned ropes trailing behind. None of the soldier tried to stop him, too occupied with a very important task: Getting closer to the downed Tauren, still stroking their cocks, to give the beast-fucker a well deserved cum-bath.
Panting heavily, both filled and covered with cum, Nyeele licked her stained lips, before grinning to the clear sky over her, a single phrase stuck in her mind.
"Worth it."

Epilogue - Two Years Later...

Nyeele moaned loudly, draped on her bed, head rolled backward. Her son was suckling at her nipples, each of his mouths wrapped around a turgid and aroused pearl of flesh. Already standing at five feet tall, the young Tauren-chimera hybrid was growing surprisingly fast and steadily on a strict diet of his mother's milk. He shared his mother's body type, bipedal and musclebound, and his father's mane, twin heads...and twin cocks.
Cocks safely nested inside the welcoming valley between his mother's breasts as he straddled her chest, the makeshift tunnel slickened by his precum, his hips moving slowly in long, delicious strokes.
"I love you, Mommy..."
"Mommy loves you too, baby. Let mommy show you how much..." A loving smile, before craning her neck down, her long tongue looking for something hard and salty...

Just what she needed.