When we stepped out of the car, Lisa was already awaiting us at her place. As soon as she saw Melanie she knew that something had occurred to her. Mel was still somewhat feeble and had a glassy look in her eyes from all her orgasms in the car. 

"Are you okay, sweetheart?" Lisa said in a caring tone. "Did you get sick in the car?"

"I'm more than okay, love," Mel replied. "You don't need to worry about anything. I'm so happy to see you, you can't imagine."

We had a soup-and-salad dinner, apparently Lisa's favorite kind of light evening meal. We shared a bottle of wine too. Then we went out dancing but returned relatively soon. I think we all knew what was about to happen and we all wanted it to happen.

Lisa's bedroom featured a big queen-size bed that she had prepared for the three of us. No other sleeping accommodation was there. Mel was going to lie in the middle. The wine had its intended effect and we got into a playful mood. We fooled around with each other, caressed Mel and were caressed by her.

"Let me check on your tits," demanded Lisa and moved with her hands underneath Mel's dress. 

Mel uttered a light moan and replied daringly, "Let me check on your clit, lover." She slid her hand inside of Lisa's pants while Lisa kept twisting Mel's nipples. Soon both moaned more audibly. 

Lisa looked at me and asked if that was okay with me. It sure was! Mel then started to undo my pants and brought out my rock-hard cock.

Lisa and I began to undress Mel then. Every inch of her appearing skin was greeted with kisses and licking. We shared her and both wanted to pleasure her. Meanwhile, Mel caressed both of us at our most erogenous spots. We all started to breathe more heavily.

Lisa leaned over to Mel, their tits touching, their tongues intertwining in a long kiss. They started to ride with their pelvises on each other's legs. They caressed each other's breasts and faces with their hands. Every so often Mel stroked my cock, but concentrated more and more on Lisa. I knew she was approaching a climax fast. Her vagina made loud slurpy sounds by now. And so was Lisa's.

"I'm gonna ride you to it," whispered Mel. Lisa's response was a harder riding rhythm, more heavy breathing and louder splashing from her crotch. Their sex juices ran all over their legs now. 

"Please hold your breath before you come," I begged Mel. (I knew she could have ground-shaking orgasms when she held her breath just before coming.) So she did and Lisa rode her like crazy with her wet leg. Then Melanie burst into a wild uncontrolled orgasm that shook her body over and over again. She came so hard and didn't stop for minutes. Squirming like that, she sent Lisa over the edge too. 

Lisa's moaning turned to screaming and she clawed her nails into Mel's sweaty skin as she came. Both girls orgasmed multiple times! Their keenness on each other was released in a mutual masturbation frenzy I hadn't witnessed before. For many minutes they went on like two ferocious animals until their climaxes finally subsided. God bless the female body!

They lay there, wet and exhausted, still breathing hard from the sexual tempest. Slowly Mel turned toward me and said in her sweetest voice, "Would you like to make love to me now?" 

I couldn't believe she was still ready for more. We started kissing and I caressed her wet pussy with my hard cock. She pushed me in slowly, enjoying every inch of it. I could barely feel the texture of her skin, so wet was she. I began moving slow and deep inside her and along her upper rim. Her eyes were half closed and she was in pure sexual bliss. 

Lisa moved toward us and inserted her index finger into Mel as well. I could feel how she circled Mel's clit around my shaft. Mel actually became aroused again and started to squirm under our pleasuring her. Her hands wandered off to Lisa's breasts and we both kissed Mel, taking turns.

Mel is such a strong and extremely sexual lover! She came again with my cock and Lisa's finger inside her pussy. I felt her vaginal muscles stiffen, her orgasm approach and all her lust overwhelming her again. Her orgasm was weaker than the incredible climaxes she had just minutes ago. Yet, she flooded her crotch, her legs and the bed again. She came like a Mahler symphony: mighty and beautiful. I then filled her with everything I had, my river meeting the river inside of her, slowly running down between her thighs.

From all of this, Lisa got horny again also wanted more. "Do you think you are still strong enough to eat me out?" she asked an exhausted Mel. 

"Put your pussy over my face, lover," Mel replied. "I'll suck your clit until you can't come anymore." 

The girls now put on a tremendous licking session. They changed positions various times, but Mel's tongue was constantly inside of Lisa's pussy. It all ended up in a 69 position with both girls licking each other toward another climax. I couldn't believe their sexual strength, they were both so horny and keen on each other's pussy. They didn't allow themselves a break now.

Then both came and gushed their orgasms into each other's mouths, and again the waves of their climaxes lasted many minutes. They did it relentlessly to each other now; no one would stop first. Their muffled screams filled the room and the gushing sounds of their orgasms was the only thing one could hear. 

"Don't stop!" screamed Lisa inside Mel's crotch. "I can still cum more!" 

"Don't you ever stop!" screamed Mel from within Lisa's legs, "I can cum even more than you!" 

So they went on licking and cumming over and over again. After each series of climaxes, they challenged each other for more. Neither girl was going to be weaker than her lover. 

"Show me what you still got," whispered Mel. 

"I can still cum much more. What have you got left?" replied Lisa. 

"I can cum all night long, you know this," said Mel. 

"I can go on like this, whatever it takes. My clit is in full training. Before you came I've already masturbated for hours," said Lisa. 

Mel then told her about her masturbation session in the car, which made both of them even hornier. Again they started licking each other towards new climaxes. By now they screamed with each new orgasm. Their writhing bodies were under maximum sexual strain; their clitorises didn't get a break, but they continued to eat each other out, sucked each other to more orgasms and swallowed all of each other's cum.

It became a matter of sexual pride now. During one of her orgasms Lisa screamed, "Lick me harder, Mel, faster and harder!" 

Mel then nearly killed Lisa with her tongue and demanded the same from a completely exhausted Lisa. "Do it to me as much as you can and I'll make you cum more if you still can." 

Lisa's voice was desperate. "Cum for me and I'll cum even more for you!" She sucked Mel as hard as she could, then she opened her legs again for Mel's lips, tongue and fingers. Both girls exploded in a wild orgasm frenzy; neither of them was going to stop licking the other to ever more climaxes. Both girls gave everything they had.

Their lovemaking had turned into pure sexual rivalry now. Both of them licked and sucked each other for all they were worth. Both girls came with all their strength and lust and sexual passion. Their bodies were in full tension and after each new orgasm, they were soon greedy for another one. No one was ready to give in. 

My cock became rock hard again, but the girls were oblivious to that. They were engulfed in a fierce sexual battle. The fact that Lisa had already masturbated hard before we came, the fact that Mel had already had many orgasms on the journey to Lisa's place, the fact that she had had sex with me (as opposed to Lisa) didn't seem to weaken her at all, nor her drive for even more sex, her fight for even more orgasms with Lisa. It became a test of strength now, a contest to sexually dominate the other. They were wildcats wrestling for sexual dominance before my eyes. 

After about an hour or more their sex became more desperate, they had to fight harder to cum yet again, but their pride and lust kept them going. They never stopped for more than a few minutes except to gain strength and turn each other on again.

After what seemed like hours, still licking and fingering each other to more (if smaller) orgasms, their screaming turned to a hoarse moaning, their bodies turned limp after each climax now. Their passion was still on, though. 

Mel raised the stakes, pointing at me and my hard-on. "Once I've fucked you dry I'll make love to him in front of you. I'll never quit. I'll have his cock as my prize and fuck him over you." 

Between her moans, Lisa replied, "If I can outlast you, which I will, I'll fuck your boyfriend in front of you. He'll be my prize then." 

I nearly exploded just from watching and listening to this. I approached the battling girls and they both sucked my cock. I said if they licked me at the same time (one to the right, one to the left) I would come all over their faces. Never have I been sucked and licked wilder than by these two. I exploded like a volcano and distributed my load equally over both of their faces.

"Let s go clit to clit--if you dare," said Lisa. 

"That's good, my clit will outlast yours in direct contest," replied Mel. 

They spread their legs and brought their pussies together. It made a splashing sound when they touched. Both girls moaned loudly from the pleasure. The suction they inflicted on each other was strong and they began panting heavily. The intensity of this clit-to-clit combat could not last very long. 

Both were approaching another orgasm, this time directly from the rival's most powerful sexual organ. Mel started to scream as she pushed her clit against Lisa's as hard as she could. This sent Lisa over the edge too and both girls mashed their wet and overfucked pussies into each other again. They stared at each other's eyes and pussies for signs of weakness. But no one stopped the clit-grinding. 

With every new wave of spasm, their faces turned more desperate while they screamed and moaned like wounded animals. I got scared for their health now. How long could this sexual duel possibly last without causing real damage to their clitorises? They kept fucking as hard as they could; another wave of orgasms built. After a while, tears started to run down their faces, but they kept fucking each other with all the strength that remained in their exhausted bodies. 

It was a fight till exhaustion now. The splashing sounds from their pussies became notably less with the time their duel went on. Their orgasms became weaker now with each new clit-attack. It seemed to turn into a pain contest. Who could withstand more clit-rubbing, who could still moisten her vagina and her labia for another onslaught?

"You know I love you, but I'll never stop this before you stop it!" whispered Lisa. 

"My clit will out-fuck yours. I can't stop this now unless you stop it first," replied Mel in a hoarse voice. 

"I'll fuck till I faint," said Lisa nearly sobbing. 

"I'll fuck you until my last rest of consciousness," replied Mel with a slightly frightened tone. 

Both girls crashed with their clits desperately now, half sobbing, half screaming. Their pride was unbroken, but their bodies were getting weaker with every new diminishing climax they forced out. Their only existence was sex and orgasm now, clit against clit in an ultimate test of strength and run to the finish.

In a desperate frenzy of clit-attack, Mel pushed Lisa into a crazy last orgasm that made her collapse in front of her. Lisa screamed during her eruption and basically faded away in complete and utter exhaustion. Her sweat-covered body lay limp next to Mel and she only slightly sobbed while trying to catch her breath. 

Mel wasn't in much better shape, her body completely empty. But she wanted the winner's prize now. While Lisa rested half unconscious, Mel masturbated next to her, their bodies touching, so that Lisa could feel it.

"I'm going to fuck you in a minute," she whispered hoarsely to me, "but I want Lisa to watch it consciously."

I couldn't imagine from where Mel took the drive and the strength for still more sex, this time with me. But she was absolutely going to savour her victory over Lisa. 

After some minutes Lisa recomposed herself a little and Mel started to sit on top of me slowly circling my cock into her pussy. We slowly made love while Lisa actually tried to masturbate next to her lovemaking friend. She still tried to show her pride and sexual readiness. This turned Mel into hard-riding my cock now. While Lisa tried to masturbate herself to a last orgasm, Mel was starting to scream again and cum with me inside her raw-fucked, but still wet pussy. I came together with her in a hefty explosion. 

Lisa was wild again and inserted various fingers inside herself. She masturbated as hard as I've ever seen a girl masturbate. But she was done. Her body had nothing to give anymore. Mel's orgasm was the last of that night.