We saw the approaching tribe some time before we met them. My MIstress had her palace-cart stopped and the servants set up her tent in good time. After a while the other tribe arrived and we saw another Mistress' tent being prepared. That meant there would be a battle - either that or a one-to-one challenge.

Eventually, after all preparations had been made, the opposing Challenger approached my Mistress. My Mistress lay on her couch, naked and oiled, her large curved thighs and belly dwarfed by her enormous breasts, with a diamond hanging from each nipple. Those diamonds had cost one hundred men each. Around her couch stood her twelve most senior servants, each of them a Ten or bigger, their erections facing towards my Mistress as convention dictated. At her feet, her current favourite wife, a small blonde girl of sixteen, was shaving the Mistress' pussy and casually licking her clit between draws of the blade.

It took a moment to realise the Challenger was a woman - challenges took place all the time and many of us were bored watching our hero, Kaplan, defeating every man who stood against him. As well as having an enormous penis Kaplan was a tall, musclebound figure, afraid of nothing and prepared to fight anytime, anywhere. Around his neck he wore dozens of gold necklaces, one gifted to him by the Mistress after each victory. But more than that, with every victory he was allowed to fuck my Mistress, while we all watched. Even as a Six my erection would be as hard as anyone' as I imagined what it would be like kissing my Mistress' breasts, licking her clit, making her come the required eight times before pushing my penis inside her, exploding in a torrent of passion then licking my spunk from her beautiful pussy.

As a Six, the best I could hope for was to be chosen to masturbate over her while she fucked her wives. In my three years with our Mistress I had enjoyed that pleasure four times - usually I was only allowed to come on her feet or lower legs, but once I had nearly cried with the honour of joining five other warriors to come on her left breast. As her wife had stirred our come with her fingers, then presented it to my Mistress' mouth, I swear some of the sperm she swallowed was mine.

It was good that I recalled these things right then, because the rules of desert combat dictate that, when the Challenger is a women, all warriors must present their erections by way of showing support to their Mistress. We gathered round her tent in a semi-circle in a single row, so that even we lowly Sixes, and even the Fives and Fours, could display their penises for the pleasure of the women.

The Challenger was beautiful - almost, dare I say, as beautiful as my Mistress. She was young, perhaps early twenties, and blonde, with magnificent tanned and oiled skin. She wore leather boots and nothing else but a golden chain about her waist, from which hung more gold chains, making a form of short skirt which didn't hide her curved ass and patch of trimmed golden hair above her clean-shaved pussy. She carried a large sword and wore a strange necklace of spherical objects, which hung in multiple loops over her large, curved breasts and erect nipples.

The only sound was from my Mistress' favourite wife, who had finished the shaving and was now furiously licking her spouse's pussy, her ass in the air as she knelt on all fours. In the whole circuit she was the only person not facing the Challenger. The Challenger's own Mistress could not be seen behind a gauze sheet over the front of her tent, but the enemy warriors had all approached and arranged themselves in a semi-circle similar to ours. Probably a fifth of our tribe were Eights or bigger, while I couldn't see a single warrior smaller than Eight on their side.

At last the Challenger spoke: "Greetings, oh Mistress," she said, pausing with a smug grin to look at all the erections presented for her. "I wish to challenge, or if not, I wish to do battle."

My Mistress let out a mellow sigh, enjoying another orgasm from her wife's tounge. Then she gently lifted her wife's head from between her thighs, kissed her passionately on the mouth and waved her away.

"Do you know who you challenge?" my Mistress said. "Kaplan has killed more than two hundred men."

"As have I," said the Challenger. "You see my necklace? Each of these orbs is a testicle from a man I have killed in combat.

We all stared, horrified. If that were true, this woman had killed many more men than Kaplan could dream of.

"You killed them all?" gasped our Mistress. "You didn't let any of them live?"

The Challenger laughed. "Once I had removed their cocks, they didn't want to live," she said. "A cockless man is worth even less than an intact man."

"You speak truth," my Mistress said after a moment. "I present Kaplan."

Kaplan came forward from behind my Mistress' throne. He wore leather boots similar to the Challenger's, but nothing else except the gold necklaces of victory, and carried a sword half as long again as the Challenger's giant. His thirteen-inch penis was fully erect and oiled, and as he approached the Challenger she stared with satisfaction at it.

They stopped within a sword's length of each other, and the challenges were made.

Kaplan pointed his sword towards his enemy, and repeated his usual line. "I will defeat you," he said, his voice a little more shaky than usual as he looked at his opposer's stunning body. "And you will die, or you will serve my Mistress for ever." Kaplan was a genuine knight of chivalry, and always gave the option of surrender to his foes.

The Challenger raised her sword in response. "I will defeat you," she said. "Then I will cut off your penis and you will die with your tounge in my pussy, making me come with your last breath." And before we could digest what she'd said, she stepped forward and grabbed Kaplan's erection with her free hand, squeezing it as tightly as she could so that his balls tightened, he stood on his toes and a large glob of pre-cum spurted onto her wrist. She laughed, licked it off, and went back to her position.

My Mistress waited a moment, then said, "I accept." We were shocked by what had been agreed upon - it was only decent to allow your enemy an option of surrender, and yet this Challenger had not done so. Worse, my Mistress had accepted the terms of the challenge, which she did not have to do.

And yet, it was done. All we could do was watch now.

The Challenger's warriors gathered around her. We knew what would happen now. As a measure of support, her smaller men would come on the ground before her, while her larger men masturbated until they exploded all over her ass, the small of her back and the back of her legs.

In the times we'd done that, our female warriors were left with a fair amount of sperm on their asses, but most of our spunk on the ground before her. But this Challenger had so many big men there was almost no spunk at her feet, and a thick glazing of come from her shoulder blades to her ankles.

All the time this took place, she looked directly at Kaplan and smiled. He was forced to stand in front of her, his bulging penis nearly touching his belly, and his balls tight with the desire to come on her himself.

Finally, battle commenced. At first it looked like they were evenly-matched; but it became obvious the Challenger was nimbler and sharper, and probably more war-clever, than our man. It helped not to have an enormous penis in the way, always a target - when men fought there was an agreement not to attempt to cut at the penis, but women refused such an idea. Having a layer of spunk clinging to her was supposed to provide a kind of balanced disadvantage, but this Challenger was clearly used to fighting with half her body covered in a sticky mess, to which sand and pebbles clung.

They battled back and forward, his penis bouncing from thigh to thigh as he moved, her breast bouncing and heaving, her ass at times open and inviting, at times closed and curvaceous.

In a sudden movement she lunged forward, lifted Kaplan's penis with one hand and struck at his ball-sack. He flew backward - but not before one of his testicles dropped to the ground. My Mistress called for a pause, and Kaplan reeled, horrified, staring at his large ball lying on the ground. The Challenger stood over it and crushed it under one boot, still smiling at Kaplan, whose legs were wet with his own blood.

"First to me... Man!" laughed the Challenger, gesturing with her finger for him to re-engage her.

He'd lost heart by that point, as had we all. Within minutes the Challenger had slashed at him many times, and battled him to the front of my Mistress' tent. He fell in submission before his foe's bloody sword. Cut and bleeding from wound after wound, head bowed, he begged for mercy.

"I told you I would defeat you," said the Challenger, "And I told you what I would do when I did."

She looked up at my Mistress - and we all did, our erections dripping with pre-cum as we waited for the decision. My Mistress just nodded, and waved for the Challenger to continue. She went back to where she had begun, and stood in the puddle of sperm her warriors had made for her.

Kaplan turned to my Mistress, pleading in his eyes. She shook her head. He bowed, ever the chivalric one. He leaned forward and kissed her pussy one more time, and she must have been enjoying the show because that one kiss made her come. Then he dropped his sword and returned to the centre of the battleground.

The Challenger had removed her golden chain and her necklace of balls, now standing completely naked except for her boots; and she had changed her sword for a short knife. Kaplan stood before her, arms at his side, his erection as big as ever despite his pain.

She looked him in the eye while she cut off his remaining testicle. "I will add this to my collection," she smiled, handing it to a naked maid, who bowed and left to prepare it.

Then she took his huge cock in her free hand, gripped it tightly and began pumping it up and down. Some of us in the semi-circle started to come involuntarily, imagining Kaplan's shame and humiliation while still being desperate to enjoy one last orgasm. Even though I was only a Six I managed to hold onto my load - so far.

But the Challenger did not allow Kaplan that final pleasure. Just as his body began to tighten, preparing for whatever he could still blow through his cock, in one deft movement she swung the knife and cut it off. She'd held him so tightly she'd nearly been holding him up herself, so that when his cock separated from his body he fell backward to the ground, thrusting and grinding in some kind of phantom orgasm.

She stood in front of him, legs apart, her pussy clearly dripping, as she held up his smooth, shiny penis in both hands. He looked up at her, and she cast it to the ground, stamping on it with one foot until it was just a fleshy mess.

"Now you will lick me as you die," she said, and Kaplan crawled forward, grabbed her thighs for support, and meekly pressed his tongue into her pussy.

We all watched as she moaned in pleasure, squeezing her breasts, her head in the air. There were two tribes of men surrounding her and those of us who'd managed not to come so far were unable to stop ropes of our spunk shooting onto the desert ground.

The Challenger gasped as she came once, twice, three times, and we heard my Mistress coming too as she fingered her own soaking pussy.

"Come on, baby," the Challenger said, looking down at Kaplan. "My last man made me come five times before he died. Don't let me down at the last."

He was crying silenty, his destroyed penis between his knees, in a pool of sperm, as he mustered the last of his life to bring her to orgasm two more times. He managed it too - and even once more, before he gradually began sliding to the ground. She leaned down with him, taking every last tongue movement he could give before he passed out. Then, desiring one last orgasm, she stood over him as he breathed his last in the spunk, and finger-fucked herself until she splashed waves of she-cum over his back, grunting and groaning like an animal, her legs wide apart, one hand crushing both her breasts.

My Mistress had summoned her favourite wife back to lick her out for all she was worth as this went on. As the Challenger went towards my Mistress and bowed, we all had full erections again. We stood in the hot sun, with Kaplan dead amongst us, as my Mistress, her wife and the Challenger fucked each other in front of us, then gave the order for us all to approach and come on them as they fucked. I had the honour of coming on the Challenger's ass, right over her crack, and I swear I was in love as I watched my spunk joining all the others' as it dripped onto her pussy lips and into the mouth of my Mistress' wife below.