He gently lifted Samantha off his body, feeling guilty at the intense aftershocks of pleasure he experienced as he slowly slid her tight, textured pussy up his shaft and his cock released a few final squirts of potent cum into her. She relaxed on the bench next to him with a glazed look of bliss on her face as he put his clothes back on, her body still rewarding her with pleasure at having accomplished its goal, and she sat there absent-mindedly squeezing a heavy breast while the other hand played with her used pussy. Josh's seed continued to drip out of her in large globs, onto the bench and down onto the floor where it began to form a pool. He could already feel the closeness of her naked body and the appealing pull of the cock-sheath nestled between her thick thighs starting to affect him again, so, having accepted his fate for better and for worse, he left her there to clean up the mess and went back to class, knowing there was nothing he could do to prevent his cum from having its own natural, transformative effect inside her vulnerable body.
Maybe she won't get pregnant, he thought to himself hopefully. Amy hadn't gotten pregnant yet, and they'd been fucking non-stop every day. In fact, now that he had resisted a second round with Samantha he could feel his body looking forward to going home and filling up his slutty cheerleader girlfriend once again with the virtually endless supply of thick cum his balls produced.
That very day, however, Amy finally noticed that she had missed her period, and realized with glee that it wouldn't be long before her tight abdomen began to swell as a result of her frequent intimate exposure to the very cum that was currently working its magic within Samantha. She was ecstatic, and immediately told Josh the good news that evening (as soon as she had enjoyed being pumped full of a fresh load, of course). Josh was excited too, though he also realized that this development had likely sealed his fate with Samantha and the other girls who were still deep in the throes of their transformations. Still, there was nothing to be done, and though he was also worried that things had moved a bit too fast between Amy and himself, he also somehow couldn't wait to settle down and start a family with her. He knew that his urges would continue to drive him to seek out other women, especially since he seemingly couldn't stop himself from turning them into busty bimbo sluts obsessed with his cock, but even so he knew deep down that Amy was the only girl for him. Whether that was another one of the football's effects, tying him to the first bimbo he fucked, he had no way of knowing, but either way he knew it was the truth.
For her part, Amy knew that Josh had begun not-so-subtly pursuing other girls, of course, and as ditzy and sex-obsessed as the football had made her, she had immediately figured out what the swelling busts and increasingly slutty behavior of her fellow cheerleaders had signified. Still, if it ever bothered her, she never let it show, even after the other cheerleaders' bellies began to swell like hers was. It may have been that she instinctively knew that Josh was loyal only to her, and so as long as he continued to feed her needy pussy a healthy diet of cock, she was unbothered by his powerful, testosterone-driven urge to sow his wild oats. Not to mention that that obscene, unfettered masculinity was exactly what had drawn her to him in the first place, and she understood the strength of the football's effects all too well. They had led to her own sexy body getting so thoroughly knocked up too, after all.
Life didn't stop for Josh after receiving this news, of course, and the other cheerleaders he had affected soon followed Samantha's lead in seducing him. As their reproductive urges continued to ramp up and they tired of their fruitless toying with lesser men, they sought Josh out one after another, and each time it was a little easier for Josh to give in to his desire for their nubile young bodies and allow himself to experience the carnal pleasures of their enhanced curves, and, ultimately, their flirty, stimulating pussies. Time and time again he would return to his senses riding the aftershocks of orgasm, balls deep in yet another needy cheerleader bimbo slut as he felt his body reflexively blasting rope after rope of dangerous baby juice into their vulnerable reproductive tracts while they screamed his name.
Moreover, indulging in his need to spread his seed seemed only to strengthen it, and he began expanding his sights beyond just the cheerleaders, to any girls who came on to him, knowing that all it would take was a quick touch of his football to guarantee that they would be willing to fully act out their desires, and as idealized, hypersexual versions of themselves, no less.
He could have any girl he wanted, and he knew it. Eventually, the power began to go to his head, and he began affecting girls more indiscriminately, even openly carrying the football through the halls with him so he could change girls on a whim. The shy, bookish blonde found herself becoming a lot more outgoing as her tits grew out, eventually going out for the cheerleading team, and then going out of her way to be alone with Josh, who savored the exquisite sensation of cumming in her. The petite, giggly redhead with freckles and green eyes became a much bustier, curvier, hornier redhead, though she still giggled in mindless bliss when her fun game of "just the tip" ultimately led to Josh ejaculating deep inside her. One touch of his football, and Josh would inevitably get to see what it felt like to combine his DNA with theirs. And it always felt fantastic. So many tempting pussies begging for his seed, and Josh couldn't help but fill them all. Over and over. It was never enough.
It was only when he accidentally changed one of his former, unpopular friends that he began to consider the results of his actions, albeit briefly. The clumsy, decidedly unattractive girl had accidentally bumped into the football as he carelessly carried it through the halls of the school, and though he hadn't meant to affect her, he noticed her eyes fluttering nonetheless in the characteristic look of dazed pleasure all of the girls exhibited as the football's effects took hold within their bodies, and it became increasingly clear over the next few weeks that she had indeed been fully affected.
Her complexion cleared, and her nerdy body began to swell in all of the enticing ways that the other girls' had, and Josh's testosterone-fueled mind was forced to take notice of her developing curves in spite of himself. He hated watching her initial panic at having been infected with whatever had turned the more attractive senior girls into busty sluts, but she too eventually succumbed to the effects and fully embraced her new bimbo body and persona. Once she was far enough along to seek out Josh's attentions, her new body was more than his implacable cock could resist as she continued to swell and tighten, and in spite of his reluctance and guilt he found himself unintentionally cumming in her slutty pussy anyway, spreading his seed yet further. She, of course, loved every second of it. All of the girls did. Once affected, every girl inevitably embraced her slutty new body and slutty new personality, and wanted nothing more than to get Josh alone where they could persuade him to breed them.
Even so, once he had indulged his reproductive urges with his newest bimbo, he took the incident to heart, realizing that the ball would change anyone who touched it, regardless of his own intentions. He resolved to be more careful in the future, though of course the damage had already been done as far as his thoroughly smitten, slutty, impregnated former friend was concerned, who quit the yearbook staff soon afterward to join the ever-growing cheerleading team.
Interest in the cheerleading team was at an all-time high, and the team's numbers continued to grow as more and more busty, athletic young women came forward to try out. In the spring, they had the best cheerleading team in the state, as well as the best looking, by far. The girls still deferred to Amy's leadership, not only because she was Josh's chosen mate and the first of the cheer-bimbos, but, once they noticed that she was pregnant, possibly also because they subconsciously knew that they would soon experience the same fate, especially with how often all of them were letting Josh spurt his massive loads inside their unprotected pussies.