As Si started to strut over to the two girls, he felt a tingle run down his spine, and he shivered for a second. Lifting his arm to scratch his armpit with the other, he felt something unfamiliar. He didn't show it on his face, but he felt surprise at the thick brush of hair in his pit.
Never looking away from the girls, he began to call out, "Hey, ladies, how about you show me around. I'm new in the area, and I REALLY need to learn the 'lay' of the land."
The two girls looked at each other and giggled, they looked giddy that such a hunk was approaching them. "Ohmigod," Tammy said to the other, "He looks even bigger and better up close!"
Glancing down at himself for a second, Si almost started, but maintained his cool. He was huge! Even bigger than before, his shirt straining over his big traps, his pants stretched over big thighs and calves. And down under his tracksuit pants, a large bulge swung between his muscular legs, where he felt most of the blood normally going to his brain draining.
As he stopped only a step or two away from the girls, he felt his mind slowing, the words taking more effort. "Hey, girls, I want some fun." his still-even-deeper voice began to rumble.
Awed at the size of this large hunk, Mel glanced quickly at Tammy, and they each grabbed one of the jock's now-massive paws, and dragged him back towards Mel's house, only two houses from where they were standing. In her garage, an old couch was waiting to be taken to the dump. But it'd do fine.
Being guided along by these two hot chicks, Si felt his mind slow, his perceptions being reduced to the guided thumps of his feet and the rapid beats of his blood flowing into his groin.
Feeling a sudden tingle and itch spread first across his face, then his chest, he looked into a darkened window as he passed, noting with growing satisfaction the suddenly-dark stubble that had grown on his chin and jaw. A quick glance down confirmed the presence of the same on his chest and forearms.
Leading Si around her house, Mel opened the side door leading into the garage, flipping on a small light. Tammy pulled him forward through the door, stopping when they heard a thump. Si's head had hit the top of the low doorframe, but he didn't care in the least, his now-thicker skull and protruding brow absorbing the impact without the slightest pain. Noting the dull smile on the hunk's face, Mel took his hand and guided him over to the couch, pushing him back to fall onto the cushions.
With that collapse, so did his pants, the thighs ripping out and his bulging groin bursting the seams on the tracksuit.
"Ohmigod.." and "Damn.." the two girls cooed, eyeing the impressive size of the jock. He didn't seem to mind in the least, and began reaching towards them, pawing at their chests with each hand.
A quick tug of the overburdened boxers exposed Si's erection, which even only half-hard arched out a good 9 inches. One hand dropped away from Mel's chest, and began pumping the rod. The other began ripping his own clothes off his body, freeing his muscles.
Both girls gasped at the sight, the scent of his sweat and musk turning them on. They began to strip for him, coyly pulling their clothes off even as they lustily stared as his body and equipment.
Tammy was the first to finish stripping, her skimpy outfit falling away to reveal her set of C-cup breasts, a delicate waist from plenty of exercise and cheerleading, and thin hips combined with a beautiful ass. She rushed in to Si, pressing a desperate kiss on the lips, with slight surprise at the rough stubble that she hadn't noticed before. She kept going, running her hands over his round shoulders, thick neck, and large, muscle-bound and also hairy, chest. His free hand came from behind and pressed her strawberry-blond head into his face
Melissa, noting the abandon with which Tammy kissed him, skipped being sexy and simply yanked off the rest of her clothes, and immediately dove for his now-hard rod. Pulling his hand off, she began kissing and rubbing the rod with one hand while guiding his hand to her D-cup breasts. She wasn't as thin as her friend, but her large hips were more curvy and shapely.
Si, now overcome with arousal, grunted, as he felt yet another tingle run over his body, this time accompanied by a slight ache in his bones, as if he'd been pulled on a rack. In response he stretched himself to try and relieve the ache, his hands staying on the girls but his elbows flying out. His head had been resting on one armrest, but now as he stretched, one foot found itself lodged over the other end of the over-7-foot-long couch. His muscles burned as they pumped with blood, and he felt himself slip a little as his body expanded.
Mel was just about to try and swallow the head of this magnificent jock's dick, when it pulsed and swelled a bit more. Frowning in disappointment, she thought to herself, 'Already?' Noting no shot being fired however, she instead decided to take the cock straight into herself, her trepidation being overridden by her overwhelming lust for this hunk of man.
Lifting her face from the rod, she gasped when she looked it over, it seemed to be even bigger! It looked more like 16 inches long, twice as big as her last boyfriend. She didn't know if she could handle it, but was more than willing to try. As she lined herself up, her lower lips brushed the head of his cock.
Suddenly, a hand grabbed her ass, and she almost screamed in pain as she was impaled on the mighty dick. She bit her lip, however, and let herself fall into the pleasure.
Oh god, Si thought, this is so good.. His body was now tingling constantly, and he could feel the thick, rough hair on his chest rubbing over Tammy's cleavage while the stubble on his face could be felt as he kissed her. His muscles bulged, and he was sure his dick was still growing as he began to thrust his hips into Melissa. His large, softball-size testes moved with the thrusts, and he could feel them swelling, getting ready to shoot.
All at once, he felt a white-hot pleasure course through his body, as he lost all sense of time and the outside world.
When he awoke, probably only a few seconds later, he could feel his thick load, having shot into and filled Melissa, running back out of her along his shaft and into the now-thick hair of his groin.
As he pulled out of her, he realized, he still felt.. aroused. Tammy, who by now was kissing his bulging biceps, needed to be fucked, he realized. Even as he lifted her off of his upper body, and impaled her where her friend had been moments ago and began thrusting, other things were going on in his head.
His mind had changed, he could feel it. Now, his goals, in the back of his mind, the root of all his needs, were to dominate. To dominate other males on the court and field, and to dominate women everywhere else, his male virility allowing him to do both. The other males were his competition, other jocks, and even nerds, geeks, and so forth, like he used to be, they were a very insult to his existence. And the women were his goals, they were his to be conquered. HE needed to be the alpha-male, the leader of the pack, that was what drove him, because the alpha got to fuck the brains out of every girl in his domain.
As soon as this cleared for him, it disappeared under the haze of lust once more. Melissa, now recovering from her own ordeal, began to crawl back onto him, still driven by her lust. That drive caused her to begin kissing his face, his neck, her hands rubbing his muscles for all they could. One hand's long fingernails began to comb through the hair of his chest, which stretched up, connected to his beard-growth as it went up, his armpits on the sides, and his broad trail down his ab-ridged belly and joined with his pubic hair.
He was hairy, he was muscular beyond belief, he was hung better than most equines, and he was tall, large, and dominant in mind.
He was a new man. No. He was a true Jock.