Sci-Fi Story - Ad Man 5

Did he care? Larry was voicing his amazement. As Tucker continued to grow, his mass swelling, adding to itself, his orgasm going on and on, Larry could see that Tucker was lost in the sensations of what was taking place. No wonder. He could tell that Tucker was in a place beyond ecstasy, that he was flying on an orgasmic rocket. His traps threatened to engulf his head and his delts surpassed the size of bowling balls. Larry wanted him, wanted his muscle, his unbelievable display of manhood. Tucker seemed not to be able to stop feeling his own muscle as it grew thicker and denser. Larry stepped up to him and began to join his monster friend in feeling, massaging the gigantic boulders of hairy muscle hanging on his incredibly broad and growing chest. He grabbed the throbbing, spraying cock.

There was no way he could get his hand around it and it had to be over two feet long now. He heard Tucker breathlessly crying for him to take it, take it. He held the gigantic head to his face, then licked around the spouting slit. His lust and hunger overtook him, and he drank as much of Tucker's cum as he could, and when he was full and still crazy with desire, he turned and positioned himself asshole to cockhead and began to push back onto Tucker's rod. As soon as he made contact, he felt Tucker grab his waist and thrust hard. He was sure he screamed. It felt like he was being impaled on someone's leg, but his lust was so intense that the very size of the gigantic tool inside him was driving to the heart of his insatiable need for more. Tucker was still pouring cum out of his cock, and he held Larry tight against him as he flooded his gut.

Even when Larry had been filled to the point that he could feel his belly distending and cum running out of him and down his legs, Tucker held him hard against him. The more Larry felt filling inside him, the more he wanted it. There was no way he could get enough. Until he began to feel the heat in his own belly and the convulsing in his muscles begin. Tucker could barely catch a breath from the relentless orgasm he was having. It didn't seem to matter how much he came. He just felt himself getting more and more turned on, hornier, constantly more erotically charged. Even as he pumped a steady stream of his juice into Larry he could feel himself growing bigger, thicker, heavier. He was so in love with the feeling of his muscles growing so much more massive so fast that there was no way now that he could have enough of the feeling, no way he could ever get big enough.

It seemed like the juice he had taken from Larry was even more concentrated in its effect than the original dose he had been given. It was incredible. If only he could get more. And then, when he saw Larry, still impaled on his churning cock, begin so show the signs of convulsing, he knew that they were each producing a more concentrated version of the formula by its very action within them. No wonder it was such an intense sexual sensation and experience. The whole thing was sexual in its most basic nature.

The muscles, the body hair, the amazing growth of their genitals, all of it was the expression by the body of an unleashing of the deepest essence of physical male sexuality. Even as those thoughts were crowding in on his consciousness, he saw them confirmed. Larry began contracting, his already huge glutes squeezing Tucker's cock so hard he thought he might burst, if it didn't feel so good. Tucker saw, immediately, that Larry's lats and delts were swelling again. From his position behind him, Tucker couldn't believe how Larry's back began to flare like a cobra's hood, how his bowling ball delts began to look more like basketballs. He put his hands on Larry's butt to slide himself out, and he could feel the iron pulsing of those glutes swelling into larger boulders. When he pulled his cock out, he was shocked at how much it had grown inside his friend.

He turned him around. Larry was grinning, his eyes rolling up into his head with the extreme ecstasy he was feeling. He could only keep saying how incredible he felt, how unbelievable this was. He was massaging his own pecs, feeling their hard, swelling contours, pressing the heels of his hands hard into their sides, pushing against them as he felt them pushing out, broadening, thickening. They were beyond enormous. His arms were so huge it was difficult to bent them very far before his forearms were stopped by the ham-like biceps bursting on his upper arms. His lats had pushed them above forty-five degrees.

His thighs forced his legs farther apart even though his quads firmly pressed against each other almost to his knees, to where his balls rested now, two very large grapefruits churning with his sex. His cock projected straight out from his increasingly hairy groin, more than two feet of thick, veiny manhood, and as his cries of ecstasy increased, he began to shoot, just like Tucker. Now both of them were standing in the pool, Tucker bigger than the biggest bodybuilder, and Larry bigger than him by half, both of them still swelling, and both of them shooting non-stop volleys of heavy cream. They laughed and they moaned with constant, growing erotic animal pleasure. They shot all over each other.

They rubbed the slippery cum into the hair that was still growing thicker on each other's torsos, enjoying the feel of their mass, their deep cuts, the mounds and boulders of harder, denser, bigger muscles. After a few more minutes, when Tucker saw how enormous Larry was becoming, still swelling, veins popping all over his body, his skin thinner and thinner as the muscle beneath stretched it like tissue, He realized that Larry's growth was even more extreme than his after he had taken a belly full of Larry's juice. So the combination of the original dose plus Larry's cum had magnified the strength of the process in him, and what he gave to Larry had been that much stronger. That meant that what Larry was shooting out of his cock now would probably be stronger still by that much more concentration.

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He looked at Larry's cock, which was like the thick end of a baseball bat and nearly a yard long, he guessed. Could he take it? He wanted to. He wanted it bad. He playfully forced it down below the water, feeling how it was so stiff that it felt spring-loaded, and let it go. It sprang up, to their delight, with a thwack hitting Larry in the face. Tucker reached up, took its frighteningly huge head and brought it down as he turned around to his own huge, hard bubble butt. He pushed back onto it, felt it stretch him until he thought his flesh would tear.

But something about this transformation also seemed to increase his capacity to open and accommodate such a tool, because he felt Larry's hands on his waist, then the pressure of his friend pulling his back as he thrust forward, and with a blinding flash of hot, erotic pain, he felt himself fill with Larry's hot flesh. He could feel the juice pumping into him. It was so hot that he tried to stand still and just experience the sensation. His own cock was still ejaculating. He had been ejaculating for at least an hour, and he couldn't believe he wasn't exhausted, but the intensity of the orgasm kept growing stronger and energizing him. He would let Larry fill him for as long as he could stand it. If he could, he would stay on this giant cock until he felt himself growing more, growing faster. The water in the pool was becoming cloudy with their cum.

Tucker had no ideas how long he had stayed on Larry's cock. He remembered that when his arms were resting almost straight out to his sides and had grown bigger than a bodybuilder's legs, Larry had been forceful about having another turn himself. He vaguely remembered that they each took several more turns.

He remembered that, no matter how big their cocks had grown, they seemed to be able to stretch to take them in, even when they were much to long to take more than half their lengths. He remembered, at one point, that they were going to get out of the pool and try to pose for each other, but they found that they were so heavy that it was almost impossible to balance themselves and stand up without the help of the buoyancy of the water. So they had stayed in the pool. Their cocks grew too long to reach the throbbing, insistent cockheads themselves, but that was not problem since they couldn't get enough of doing it for each other.

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