Zayne huffed as he thrust.
The little fox cub was being tested, and he was doing his damn best to make sure he didn’t fail. The proctor of this little endurance test was of course none other than Ali, a muscular spotted hyena from a tribe of foreign raiders. 
Seven months ago, Zayne had been a Knight in shining armor for the nation of Alexandria, or well an aspiring knight to be more correct. He’d been the squire of the Prince, the Bloody Dancer as he was called due to his habit of inviting unwanted politicians to banquets where they were poisoned or killed. Needless to say, the prince’s policies towards Ali and her tribe were less than kind. 
After countless atrocities, Ali and her band of War-bound, elite fighters of their gnoll tribe, came together to ambush a caravan carrying the prince and his squire when it was passing through their land. Slaying the guards, and killing the prince, Ali had spared Zayne because she found him cute and amusing when the little ten-year-old had pulled his sword on her. 
She found him cuter pinned under her, smothered by her heavy breasts, pierced nipples rubbing against his face. His squirming little body underneath her heavier one, hands gripping at her hips and arms to try and push her off. She hadn’t hesitated to rape him, stealing his virginity that same day in the very same caravan he and the Bloody Dancer had been sharing. 
Now, little Zayne was no longer a royal squire with a future of Knighthood and perhaps even settling down as a noble with a few fiefs. He was a living sex-toy for Ali, the Moonlight Huntress, and Ali expected her toy to perform well. She was used to older men, but she liked them younger. When she could indulge, she did. However, she had a bad habit of breaking her younger boy-toys without meaning to.
Zayne was valuable though. And he had been trained from birth to be a hardy lad. The fox pup could take some abuse, and he often did whenever Ali decided to bury his snout in her pussy and ride his face till completion. Or, when she decides to ride him until his hips ache and his balls are so empty each orgasm hurts. 
But Zayne had gone from an unwilling prisoner and rape victim to something of her little stud and protector. He had learned from the other hyena cubs of the tribe, and she’d taught him a good bit of things too. In return, he’d taught them how to craft and maintain armor, though he obviously lacked the skill to create full plate, he could at least show them how it worked. 
Lots of grooming had broken him in, lots of sex and drugs and herbs had turned his brain to mush. How could a boy his age resist a strong, dominant woman? Her scent, her warmth, her taste. And, since they were incompatible for having children together, it meant he often had plenty of bed-breaking, sweaty, and intense sex with her. All raw. All without a single bit of hesitation or concern. 
Now, Zayne was being taught endurance. It wasn’t that he came too quickly or grew tired too soon, but Ali wanted him to torture himself a bit for her amusement. She had told him that they were to fuck from sunrise to sun-fall, and there would be no breaks. Zayne would have his cock buried balls deep in the older woman for as long as she wanted. And he’d done a marvelous job of that. 
His hips moved fast, spearing her deep with his young kiddie cock. He huffed and pants, his body warm to the touch, his cute little moans filling up the tent. The musk of their lovemaking perfuming the air, along with the slap slap slap of their bodies meeting providing the rhythmic beat of her ovaries being brutalized by his young dick. 
Ali held a leash, made of simple rope that was tied around Zayne’s neck. His wrists had been bound behind him to make things a little more fun, and Ali would occasionally yank the rope to choke and throttle him, often hovering on the edge of knocking him out with the breath-play. 
Multiple loads caked the table beneath them, some of it dry, whilst fresh cub cum oozed from her mature pussy. She was thoroughly soaked, drenched in her own juices along with his. But she loved it. Her pierced tits bouncing as he thrust into her like a feral dog in a mating rut. 
Ali grinned devilishly as she pulled on the leash again, hearing a “Gurk!” be pulled from her young lover, watching as he began to turn blue from the lack of air. But he fucked her harder just as he always did, until she relaxed and let him draw breath again. He whimpered, drooling like a dumb mutt as he felt himself getting close to finishing inside her again. 
Ali looked out the doorway of the tent and saw that the sun had finally set, the sky was no longer bright blue, but a deep orange-to-black gradient that signified the day was over. She giggled; they’d actually fucking done it. They’d fucked the whole day away, baby-making in her tent. 
The royal squire was about to cum in her for maybe the twentieth time, and he was gonna fucking love it. Ali said nothing as she wrapped her legs around him and used her heels to slam him into her womb harder and harder.
“Cum for me.” She said, speaking in her thick accent. Naturally, gnolls had their own language. But she knew enough common to speak to him, at least while teaching him gnoll at the same time. “Cum for me handsome!” She yelled, feeling her own knot in her belly suddenly relax as a tidal wave of femcum washed over his young cock.
Zayne buried his bone completely in her one final time, letting out a cracked cry of bliss as he came. His young nuts clenching up against his pulsing taint one final time as he dumped rope after rope of fox cum inside of his new Huntress Mommy. Ali yanked his leash again, forcing him into a kiss, their tongues dancing and wrestling as he drained himself into her pussy which continued to milk him with its frantic clamping and spasming. 
When the stars finally faded from their vision, Zayne collapsed down onto Ali, his face between her tits. He couldn’t speak, his heart was going a mile a minute and he felt like he’d lost five pounds.
Ali simply smiled, and ran her claws over his back gently to soothe her boytoy. “That was good, young stud,” she whispered, “sleep now.”
A few minutes later, to the sound of crickets chirping, the two fell into a deep and comfortable sleep. Neither would have this any other way.