Author’s Note: This story is a fun commission reward for one of my awesome patrons. Standard disclaimer applies: this story contains fictional depictions of erotic scenarios, so act accordingly! All characters are at least eighteen, all situations are entirely fictional, and any resemblance to any real-life individuals or situations is entirely coincidental. Copyright Fidget, 2025. All rights reserved. Enjoy!

The Contagious Cock

by Fidget

Chapter 2

My new cock was instantly hard at all of the feminine flesh on display that warm summer day. Girls were just wearing short skirts and skimpy tops like it was no big deal, advertising smooth skin and firm breasts and tight asses with no consideration whatsoever for what it was doing to me.

One girl walked past with a thong visible above her skirt. Another's small tits bounced in her top, clearly unsupported by a bra, as she strolled by chatting with a friend. Halters showed off chests, midriff-bearing tops showed off tight, toned tummies, and all of them drew my gaze, forcing me to think about how good their bodies would feel against mine as my cock throbbed encouragement.

I tried to ignore it all and catch my breath, knowing that these thoughts weren't my own, that they had been forced on me by my new, unwanted cock, but it was just so difficult. I was drowning in a sea of soft femininity, and every ounce of it was making my new member harder and harder.

In short, I was in serious trouble.

I held my bag in front of my throbbing erection and ran for the front door of my first class's hall, trying to ignore the girls around me whose bodies were just begging to be looked at. I'm lucky I only have two classes today, I thought as I slid into my seat.

Still, that first hour and fifteen minutes passed with agonizing slowness as I involuntarily focused on the women around me in the classroom, imagining how good my cock would feel against each of their bodies. It didn't help that it was a Shakespeare class, which meant that 90% of the students were female, or that it fulfilled a writing requirement, which ensured that it featured a deliciously diverse assortment of girls from every clique on campus.

There were athletic girls, sorority girls, nerdy girls, tall girls, skinny girls, thick girls - and I wanted to fuck every one of them.

I was even susceptible to the charms of my professor. Her curvy, mid-40s body practically oozed a mature, erotic sensuality, and her professional attire just made me picture her as a sexy secretary, practically begging to be bent over her desk and railed from behind. I couldn't help fantasizing about how good it would feel to shove my cock into her while reaching around her body and squeezing her large milf tits. God her tits were fantastic. They all were. Big tits, small tits, it didn't matter - they all made my cock hard and gave me that strange, insistent urge to rub it against something, whether that be my hand or, preferably, the soft, sexy bodies of the women near me.

Needless to say I spent the entire period trying to hide my boner, praying that nobody noticed as I stole lecherous glances around the room and my skirt rose to the point where the tip of my cock brushed against the underside of my desk with each throb. I'd heard that guys constantly thought about having sex with every girl they saw, and while I had no idea if it was actually true, if it was anything close to what I was currently experiencing I wondered how they managed to live with themselves. The urges were incessant, my mind constantly imagining their naked breasts and pussies as I pictured them worshiping my huge cock in a dozen lewd ways.

The cutie beside me did it to me the worst though. The sweetest girl-next-door you ever saw, with light, subtle makeup on her round face, wearing tastefully form-fitting clothes that showed off her slim waist and small, perky breasts to perfection.

I couldn't believe how hot she was. It wasn't fair - it shouldn't be possible for a person to be that sexually enticing, and even though I knew that my reaction was probably only because she was the closest one to me at the moment, my incredibly turned-on body didn't seem to care.

My dick began to throb even harder if that were possible, and I let myself sink into the vision of her cute, petite body, her soft, creamy skin, the slight blush on her cheeks, the color of her lips. In hindsight I suppose the feeling could be imperfectly compared to a crush, but it was so much more intense than anything I'd ever experienced for a guy before.

I knew why I was feeling this way, of course, after what I'd personally experienced last night and this morning, and I had a dark suspicion about what would happen if I gave in to my urges and let myself go too far with one of these temptresses. In hindsight my decision to never pass on the curse Angie had saddled me with had been noble, but naive, and now that I'd experienced just how powerfully attracted to other women my devious new dick had made me, I realized that actually holding myself to that promise would be significantly harder than I'd anticipated.

As I continued to secretly ogle the cute girl next to me I experienced a sudden desire to hit on her, to let her know how badly I wanted her. These new urges felt just as powerful and natural as what I'd felt for Angie the night before, but whereas my "crush" on Angie had overwhelmed me with a need to submissively offer my body for her pleasure, this new attraction to the sexy women around me was instead making me feel strangely assertive.

I wanted to act on that deep, carnal hunger for the cute co-ed's body, and somehow I knew that if I just did what came naturally and put myself out there, she'd be mine. I just needed to get inside her personal space, to show some of the irresistible self-confidence my Angel had shown the night before, and this little cutie would be worshiping my cock the way I'd worshiped Angie's. I pictured her just as demure and infatuated as I had been, eager to let my throbbing shaft slide inside her so that her tight body could make me...

I didn't notice that my hand had slipped down underneath my skirt to massage my needy member, ostensibly to take the edge off my arousal, but I squirmed at the sensitivity of my thick rod and how it good it felt to touch. Clearly my cock wanted to be used for its intended purpose, regardless of my feelings about it.

I continued to clandestinely stroke my dick as I stole furtive glances at the hottie next to me, and soon I felt my hand grow slick as I once again began leaking my thick precum. Increasingly caught up in sexual euphoria, I enjoyed the slimy sensation of rubbing it between my fingers for a second, and then I was suddenly subjected to the intrusive thought of how hot it would be to secretly rub a bit of myself on the sweet girl next to me without her knowing. God that would be hot. Even in my current state it seemed like such a weird, random thing to do, but the urge was present and overwhelming nonetheless.

My thoughts drifted back to the events of the previous night, and I pleasurably recalled the cool tingling sensation on my skin that Angie's first touch had left, followed immediately by the delightfully warm, fluffy sensation that marked the onset of my irresistible infatuation.

That thought shocked me so badly that I even stopped stroking my dick for a second, as I realized that that wetness must have been how Angie had ensnared me in the first place! It had to have been her pre-cum! I had to stop masturbating!

But my dick felt so good when I stroked it though, especially when I thought about the cutie next to me while doing so, and as much as I mentally screamed at myself to stop, my nimble fingers continued teasing the sensitive spot underneath the head of my cock as though they'd had a lifetime of practice. And as they did so, of course, my unwanted dick continued to involuntarily ooze its insidious, hypnotic love-juice onto my hand, and in spite of my determination not to infect anyone else with the curse I'd been saddled with, my urge to reach over and give the cute girl's arm the briefest of touches was growing.

It would be so easy, and it probably wouldn't even do anything anyway. It seemed almost silly to resist the urge. I watched as my slick hand slowly removed itself from under my skirt, lifted itself into the air, and began making its way over as my aroused cock repeatedly tapped the underside of my desk in encouragement, pulsing even harder than it had before and oozing even more dangerous goo down the underside of my rigid shaft. Closer... closer...

I was abruptly shocked out of my daydream as the bell rang, and was horrified to see that my hand was only a few inches from the girl's arm. She noticed what I was doing as she went to put her books away and shot me a suspicious look. I awkwardly played it off, angry with myself at how close I had already come to doing to this poor girl what had been done to me, and even angrier at how easily I had been manipulated into doing so.

I had to sit alone in the lecture hall for multiple minutes after everyone else had left, thinking of bugs and other disgusting things, before my dick calmed down enough that I was finally able to leave. The front liner of my skirt was practically coated with precum by this point, and I could only be thankful that it didn't show through the black fabric.

I noticed that my best friend Jill was waiting for me when I exited the room, just as she did every day, so that we could chat between classes.

I had hoped that she would be exempt from my unwelcome new desires for the fairer sex, but no such luck. I'd always thought that Jill was attractive, in an objective, platonic sort of way, but all of those features that I'd previously appreciated in her as a friend now tugged at me in a way that was anything but platonic, and I felt my cock stir with interest once again.

Jill was a very pretty girl, I suddenly realized, and the feminine flare of her hips on that athletic body just made me want to squeeze her against me. It was clear that my cock wanted her just as badly as it did all the other girls, and I felt that assertiveness building up inside me once again, that need to demonstrate the intensity of my attraction. Or to demonstrate the depth of my affection, at the very least, since she was my best friend. Impulsively, I reached a hand around her torso and gently pulled her against me in a half-hug, savoring the sensation of my hand on the smooth skin of her arm as I secretly swore that I'd never do anything to hurt her, no matter how badly my cock was making me want to do unspeakable things to her body.

Just at that moment, however, Jill leaned herself fully into me and sighed, and when I glanced over at my friend I was surprised to see a glassy, strangely intimate smile in her beautiful eyes. Too late I remembered the copious amount of precum that had coated that hand just minutes before, though I had a sneaking suspicion that my cock had known exactly what I was doing when I reached my arm around her.

Even though most of the slick liquid had dried, clearly enough of it remained on my skin for my best friend to fall deeply under its intoxicating effects, and in spite of myself I felt my cock hardening at what I knew would come next.

"You know, Amy, you're such a good friend," Jill purred, wrapping her arms around me and pulling me into a hug that grew tighter and more sensual the more enamored with me she became. "I don't tell you that enough."

I knew that I should make her let go, but with the way her curves were pressed against my body I was quickly becoming just as intoxicated with her as she was with me. Jill felt amazing, and all I could do at this point was hope that the effects of her infatuation would be limited to these platonic expressions of friendship. I just needed to make sure not to let her suspect that what would please me most was for her to let my fat cock bury itself in her tight pussy.

I watched Jill's pupils dilate as she stared lovingly up into my eyes, and my dick began a distracting, pleasurable throbbing against my skirt. As badly as I wanted to rub my erection against her body, I made sure to keep myself turned away from Jill so that she wouldn't notice it pressing against her.

Unfortunately, Jill wasn't done. "Amy, I need to show you how thankful I am," she whispered into my ear, and began to slowly run her hands up and down my back. "What can I do?"

As her lip touched my earlobe a shiver ran down my spine directly to my cock, which throbbed hungrily at the sensation. I knew exactly how I wanted my sexy little friend to show her appreciation, and I knew that if my own behavior the night before was any indication, Jill would be more than willing to oblige. I lost myself in the feel of her delightfully firm B-cup tits pressing into mine, and, almost of their own accord, my hands slid down the tempting taper of her torso to her flared hips and gripped her tight buttcheeks, pressing her pubis tightly against my hip.

She took my meaning immediately and moaned into my ear. "Oh yeah, that's it, Amy. I want to make you feel so good." I felt her breathing get heavier as she began to rub her torso against mine.

We stood there for a minute in the middle of the hallway gently groping and caressing each other's bodies, completely oblivious to the show we were putting on as Jill actively stoked my arousal and I unsuccessfully tried to resist my friend's considerable feminine wiles.

"Oh god, Amy, I just love you so much!"

I looked into her eyes, and there it was. That same look of utter adoration, that complete unreserved willingness to please me with her body however she could, regardless of the consequences, that I knew my own face had shown the previous night when I was under Angie's spell.

But I'd had no way of knowing just how erotic it would be to see that expression on another woman's face, let alone my best friend in the world. If this is what I'd looked like the night before, I honestly wasn't at all surprised that Angie had boned me. Hell, I'd have boned me. I wanted to rip Jill's clothes off and take her right there in the hall. I wanted to bend her over a desk and shove my dick so far up her pussy that my cum would spurt out of her ears like a sprinkler.

Just as I prepared to drag my best friend to the nearest empty room and fuck a nice, thick cock into her, however, the bell rang, breaking my new member's spell over me just enough to consider the consequences of my actions. With superhuman effort I broke away from Jill, and practically sprinted away from her toward my next class.

I still had a free period to get through, though, so I barricaded myself in the bathroom, in the stall furthest from the door, and immediately whipped my cock out to work off some steam. It was still fully erect, swollen and purple and twitching from being teased by Jill's seductive body for so long without release. My hand wrapped itself around the thick, precum-coated shaft like it was the most natural thing in the world, and seconds later I was once again feverishly stroking myself toward bliss.

Even though I knew I shouldn't, I couldn't help but think of Jill as I masturbated, imagining her soft body pinned underneath mine, her eyes eager and willing to give me the pleasure I craved. I slid my left hand under my bra and squeezed my aching breast as I sat there spread-legged on the toilet, imagining that it was Jill's pert little breast that I was squeezing instead. I pinched my nipple fiercely as the fingertips of my right hand teased my slippery cockhead, imagining it slipping between Jill's creamy thighs as she eagerly opened them for me, knowing how good it would make me feel. I stroked harder, groaning as the tip of my dick finally slipped into her tight entrance and...

My cock erupted before I was ready, firing a thick rope of spooge that thunked against the door of the stall before I could remember where I was and point my cock down into the toilet bowl, where I then continued to moan and spasm and dump spurt after spurt of gooey ejaculate into a large, viscous glob on the clean white porcelain.

I came for what felt like minutes before my orgasm finally trailed off and my cum finished pumping. Jill had apparently wound me up more than I'd thought. As I sat there, gasping for breath while my cock temporarily retreated to only a half chub, post-nut clarity hit me with a feeling of intense guilt for what I'd just imagined doing to my enthralled best friend. I reiterated my promise to never take advantage of Jill, no matter how hard it made my cock to see my sexy bestie so helplessly infatuated with me.

I'd be strong. I had to for Jill's sake.

I jerked off four more times over the next hour, thinking about Jill every single time. I tried not to, but a few minutes after each ejaculation a picture of Jill's adoring face and delicious body would inevitably creep back into my mind and make me all hard again, and I'd stroke and stroke to the thought of my thick cock sliding inside her sexy figure until I came. I couldn't help it.

I managed to make it to class on time, but even after my marathon masturbation session I still found myself checking out all of the tempting feminine assets on display around me as I slid into my seat, allowing my gaze to linger on a wide assortment of pert breasts, wide hips, and tight, toned legs for as long as I felt I could get away with.

This time, however, even though I was just as horribly tempted by all of the sexy women around me as I had been the first time, for some reason my lust seemed the tiniest bit more manageable. I told myself that was because I was getting used to my new cock's powerful urges, and not because I'd accidentally turned my best friend into an infatuated cocksheath who would be more than willing to fuck me after class either way.

Manageable or not, I still gave in to my urge to masturbate halfway through class, but at least this time I was able to keep my slimy, hypnotic hands in my own lap. Instead I secretly caressed the girls around me with my eyes alone, staring at their curvy bodies and trying not to imagine how easily my precum-oozing cock could make them all nice and amenable to the idea of letting me slide into the tight hole between their legs.

Jill was waiting for me after class, of course, just as I'd known she would be, but now that I'd had an entire, relatively uneventful class period to calm down, I convinced myself that it was probably safe to walk her home and make sure she was ok. Jill was still dangerously attractive to me, of course, and she was clearly still under the effects of my precum, immediately latching herself onto my arm and gazed up at me lovingly with her beautiful green eyes, but for some reason I felt confident that everything would be fine nonetheless. And anyway, her skin felt so good against mine that I don't know if I could have stopped even if I'd wanted to.  

So, we slowly made our way toward Jill's place, arms wrapped tightly around our waists so that we could rub our hands up and down each other's bodies as we walked. My hand couldn't seem to get enough of Jill's tight torso, repeatedly squeezing her curvy hip, and then sliding up her narrow waist to the soft bulge that indicated the beginning of her sexy sideboob, and back again to repeat the process. As we got closer to her house Jill began turning her chest when my hard reached the apex of its journey, treating me to more and more of her tight, perky tit each time.

I knew exactly what Jill was experiencing, having completely lost myself in it the night before: that wonderful, selfless compulsion to offer one's body for another's pleasure, regardless of the consequences. Now that I was the one being offered that pleasure, however, that look of pure, worshipful infatuation on Jill's achingly beautiful features awakened the most intense sexual desire I'd ever experienced. I was fully aware that Jill's feelings for me had been artificially induced, of course, and that I had been the one to make her feel this way thanks to my treacherous precum, but under the circumstances it was surprisingly hard to make myself care.

I finally understood what Angie had been dealing with the night before - it was getting more and more difficult to remember that Jill was my best friend, or for that matter to see her as anything other than a willing, beautiful body to enjoy, with a tight hole to shove my cock into until I filled her up with cum. I could do whatever I wanted to her in this state, take her any way I pleased, but really, the only thing I wanted was to luxuriously bury my cock up to the hilt inside of her cute little pussy and release all of the sexual pressure that had been constantly building in my body from looking at all of those beautiful, fuckable women all day.

All too soon we were standing in front of Jill's house, each of us trying to prolong the physical contact as we dreaded going our separate ways.

The entire time I stood there I kept telling myself that I was just here to walk Jill home, despite the fact that I could barely muster the self control to keep from fully and openly groping her tight little body right there in front of her house. My hand dropped to squeeze her ass again, and Jill moaned, leaning even harder against me, grinning happily up into my face, not wanting to let me go, and I was so taken with her in that moment that I let my middle finger slip into the asscrack of her leggings, sliding down, deep into her thigh gap from behind until I finally made glorious contact with the base of my best friend's puffy labia.

Jill's eyes immediately turned large and liquid as she stared up at me, and I felt my cock get even harder. Her lips parted with a small sigh, and then Jill made the fatal mistake of inviting me inside.

Her mom wasn't home from work yet, and so were free to make our way to her bedroom, unable to keep our hands off each other now that we were finally alone. My hand was buried between her thighs as she walked up the stairs in front of me, and I stared hungrily at her ass as her glutes flexed.

I'm just staying for a minute! I insisted to myself as Jill closed the door behind us, trapping us in a room we'd been alone in together hundreds of times before. Those other times we hadn't been horny for each other to the point of almost ripping each other's clothes off, of course.

And I hadn't had a massive, throbbing cock.

I was no longer able to hide my erection, and now that we were in private I knew it would only be a matter of seconds before Jill's wandering hands discovered it. I found myself torn between the self-conscious shame I'd expected to feel when someone else discovered my cock, and an odd, unanticipated desire to proudly show it off to my sexy, besotted thrall.

I ended up splitting the difference and just stood there, stiff with anticipation, until Jill's warm, comforting smile widened to let me know what was coming, and her hand began sliding down my abdomen toward my crotch. I waited, holding my breath, until her hand encountered its unexpected obstacle, and I watched her eyes grow wide with wonder. She looked down, finally noticing the large bulge in the front of my skirt for the first time, before slowly, reverently lifting my skirt and exposing the sensitive flesh of my throbbing rod to the open air of her bedroom.

It hung heavily there between us for a second, twitching erratically, before Jill finally spoke.

"Amy, I don't remember you having a dick before."

"That's because I didn't." As much as I hated my new cock and what it was doing to us, I couldn't help but feel a surge of pride at how massive it was. A large, iridescent bead of precum formed at the tip and slowly dripped its way down the length as Jill stared at it.

"It's... so perfect..." Her soft little hands reached out and gently stroked the thick shaft before I could stop her, giggling with glee and obvious arousal as it bucked in her hands from the contact.

I had naively thought that letting Jill touch my dick might take the edge off my unrelenting arousal, and while it did finally break through some of the incredible sexual tension between us, it also made me crave even more contact with her feminine body. Essentially, it took me from wanting to flirt, to wanting to fuck.

Jill seemed to know exactly what I needed. She pressed herself against me again and allowed the sensitive underside of my cock to slide up her petite abdomen, soaking her shirt in my precum and causing it to ride up her toned tummy in the process. Our breasts pressed hard against each other, and I felt my cock pulsing intermittently against the soft skin of her torso from the sheer sensuality of the situation.

I was already dangerously close to losing control.

Jill seemed to know this, and encouraged it, stroking my cock between our bodies as her eyes twinkled up at me.

"Does that feel good, Amy?"

"Uh-huh," I grunted, my voice lower and huskier than I'd anticipated. It did feel good, but at the same time, it only left me wanting more...

Once again Jill seemed to read my mind, and she slowly slid her precum-soaked top up her petite torso and over her head, leaving only her bra covering her bare chest. She put her hands behind her back to undo the clasps, and seconds later my best friend's small breasts were pressed naked against my t-shirt.

I'd seen Jill's breasts before, of course, and while I had certainly recognized at the time that they were nicely shaped from an objective standpoint, I'd never felt anything sexual for Jill while looking at them. Now, however, with the overwhelming effects of my cock filling me with all of these new urges, I couldn't take my eyes off them. They were the most arousing objects I'd ever seen, and my cock seemed to agree, giving a corresponding jerk against Jill's bare torso and oozing out still more precum against her pale skin.

Is this what it felt like to be a man? To be irrationally driven into a rutting frenzy at the mere sight of a pair of naked teats? And they held such a confusing power over over me - I couldn't tell whether I wanted to gently hold Jill in my arms and lovingly caress her chest, or whether I wanted to spin her around, force her down over the bed, and squeeze and grope the bulges of her small B-cups while I hammered my aching cock into my best friend's pussy from behind until I splattered her insides.

Terrifyingly, I knew that in her current condition, Jill would be more than willing to do either.

I settled for the less violent of the two options, gently placing a hand on her breast and appreciating the delicious feel of her small mound and the perky, erect nipple in the middle pressing against my palm. They were perfect.

And all the while my cock continued dripping precum onto Jill's trim stomach, giving me the wonderful, indescribable sensation of sliding my member against another woman's slick, naked skin for the first time. I hardly even noticed as my hips began a gentle rocking motion, gliding my cock up and down Jill's tummy as she continued to gently stroke me.

I knew we needed to stop, that I was dangerously close to breaking my promise never to inflict Jill with the cock Angie had forced on me, but right as I focused my concentration on tearing myself away from her succulent breasts, Jill's thumb rubbed against my frenulum for the first time and I felt my mind blank and my knees go weak with pleasure, forcing me to sit down on the edge of her bed.

When I came to a few seconds later, I realized that Jill had somehow already removed her leggings and underwear and was starting to straddle me. Before I knew it, Jill had my hips between her knees and her beautiful breasts were dangling right in my face. At some point I had lost my shirt as well, and my own larger breasts were pressed tightly against Jill's belly.

"Go on," Jill said enticingly, arching her back as she offered herself to me. "I want you to. I can make you feel so good, Amy."

How on earth had Angie waited as long as she had to fuck me the night before with me acting like this?? I knew that, just like Angie, I only felt this way because of the massive cock rising up from my hips, but knowing why I felt this way didn't make it any easier to resist. My massive cock wanted to fuck Jill, and there was nothing I could do to change that.

I gave in. I buried my face in her tits, licking, sucking, groping them with my hands, amazed at how good they felt even as they drove my arousal higher and took me even closer to the edge of my control.

Both of us were deep under the spell of my cock by this point: Jill with her infatuation and obsession with making me feel good, and me with my inflamed, visceral lust for her soft femininity. My unrelenting cock was still rock hard, standing stiff and rigid and vertical in the charged air between our torsos as I groped my best friend's tits with abandon.

It occurred to me that as long as we stayed like this, as long as we kept my cock safely trapped between our torsos, nothing bad would happen, and I could just enjoy the amazing pleasure and desire pounding through my system from my rock-hard member. Once again, however, Jill seemed to know exactly what I really wanted; her hips slowly began to bend above my thighs as she continued to straddle me, and a moment later her furry, naked mons brushed against my cock for the first time, about halfway down the shaft.

"Jill..." I moaned in warning as my cock released an especially thick, cloudy gob of precum.

"Shh..." she whispered, gently putting a finger against my lips, and continued slowly sliding down until her mound came to rest against the base of the monument my body had erected to to my lust for her body. Her face was now even with mine. Her eyes twinkled with mischief as she bent down, pressed her torso against mine, and kissed me.

She tasted amazing, and I felt her eyelashes fluttering against my cheek. After a second she broke the kiss, but didn't push herself up and away again. Instead, she pressed even harder against me, and I fell back onto the bed with Jill on top of me, still straddling my hips, but now with the underside of my huge cock pressed tight and flat against her entrance instead of against the front of her mound.

I knew that we needed to be careful, that we were getting into actually dangerous territory with my cock locked and loaded with what felt like buckets of transformative cum only inches from her vulnerable vagina, but then Jill began sliding her slick pussy lips up and down the precum-coated underside of my shaft, and my mind sort of short-circuited, leaving me unable to do anything other than simply lay there and embrace the sensation.

I told myself that it would be fine as long as I could keep my cock out of Jill's pussy, but the more she rubbed her tight, nubile body along mine, and the more I felt her perky little tits pressing into my own boobs as she continued to stroke me with her soaked entrance, the more desperate I became to just give in and thrust my reckless cock deep into her magnetic pleasure tunnel and be done with it.

In my half-crazed state of mind it occurred to me that if, instead of trying to resist my urge for Jill's body, which clearly wasn't working, I instead let myself fully embrace and enjoy it, there was a decent chance that Jill's pussyjob would go ahead and make me cum. That way my huge load of transformative semen would be completely wasted, blasting between our torsos, coating our sticky, sweaty boobs in a thick layer of my spooge, and in the process ensuring that none of it got into Jill's vulnerable little pussy where it could catalyze her transformation.

So, I threw caution to the wind and fully accepted the urgent, pleasurable sensations flowing through my dick as her pussylips continued to stroke up and down it, knowing all the while that this close to its goal there was no way my cock would settle for cumming anywhere other than deep inside a fresh, unsullied vagina ripe and ready for corruption.

Right on cue, I felt the angle of Jill's body tilt slightly, and my eyes widened as I felt the tip of my cock slide further between my best friend's pussylips for the first time and into the beginnings of an enticing, restrictive tightness. Seeing my surprise, Jill leaned her angelic face over mine and whispered, "It's ok, Amy. I know you'd never do anything to hurt me." The sight of her soft lips and cute smile was driving me crazy, and I wanted nothing more than to thrust myself fully into her slick embrace, ignoring the fact that she was being forced to feel this way, that her trust and infatuation with me were artificial thanks to the love potion I'd inadvertently slathered on her skin. Even so I tried to hold back, though my resistance was quickly crumbling, and my urge growing.

"Jill, no... we can't... you don't understand... it will change you..." I began, but then Jill made my decision for me, and I just lay there helpless and delirious with pleasure as that sensation of slick tightness slowly squeezed its way down my shaft, bathing me in warmth, until I was finally buried to the hilt in the stimulating depths of my enthralled best friend's cute little pussy.

"Hush," she whispered again. "I can tell how badly you need this, and I want to give it to you."

I still didn't want to take advantage of Jill, but her slick pussy felt so good wrapped around my dick like that, so much better than any sensation I'd ever felt in my own pussy. The gentle, enveloping pressure, the velvety slick texture - the sensation was exquisite, and now that I was experiencing just how utterly amazing it felt to give in to my urges and bury my cock in a willing, infatuated pussy, I never wanted to stop.

I realized that I had made a huge mistake allowing myself to go this far with my best friend, but by this point it was a bit too late for that, and Jill wasn't finished. She slowly tightened her toned, beautiful thighs, and her pussy began to slide back up my thick cock, squeezing it from the base of its shaft to its thick, bulbous tip as she lifted her hips. The urge to slide myself back into her was too strong, and I wrapped my arms around her slim waist and pulled her back down, slowly squeezing my girth into her tight entrance once more as she sighed in pleasure, all the way down the length of my huge rod, until i finally bottomed out again with my cockhead pressed with a pleasant snugness against Jill's cervix.

She began to slide herself up again, and that was more than I could handle. I took over and sped things up, beginning to build a rhythm thrusting up into her as she continued to encourage me with moans and sighs and soft kisses each time I penetrated her soft, stimulating depths.

Jill's eyes were doubtless looking down at mine with loving adoration the entire time I was repeatedly driving my thick cock up into her tight pussy, but by this point I was starting to forget that she was even there, single-mindedly focused on my urge to feed that familiar tightening sensation growing in my rigid shaft by mindlessly thrusting back into that tight, irresistible fuckhole over and over again.

And then, all of a sudden, I couldn't hold myself back anymore, and my attempts to do so as I realized what was happening only hastened the impending inevitability. "Oh goddd, Jill..." I moaned as I felt those new, unfamiliar muscles beginning to tighten without my permission. All of the pressure Jill's efforts had been building up inside my dick over the course of the day came to a head, and my body prepared to blissfully release what felt like a torrent of corrupting cum into my best friend in the world.

"That's it," Jill cooed, pulling her torso tightly against mine, squashing her B-cups down into my larger Cs as she wrapped herself around me and prevented me from pulling out. She smiled down into my wide, panicked eyes, and her expression was warm with arousal and unconditional, artificial love as I finally lost control and my massive rod erupted deep inside her, forcefully splattering her insides with the first thick spurt of my enormous load. "Thaaats it, baby. Just let it happen."

I didn't really have a choice. It was pleasure like nothing I had ever felt before, as if some otherworldly force had reached deep inside this unfamiliar fleshy tower of intense, unyielding virility pulsating up from my crotch and flipped a switch, forcing me to release a stream of pure, delicious ecstasy from my body and into hers with each viscous spurt. I even began to coax the cum out of my massive, jerking member, growling "More... ngh, more! unh God, yes, come on, more!" I couldn't help it; emptying myself into the depths of my best friend's vulnerable, irresistible femininity like this was the most viscerally satisfying sensation I'd ever experienced.

I now understood how a man felt after giving in to his impulse to spread his seed during an especially hot one night stand - even after promising to pull out, knowing what could happen if you didn't, once your cock was teetering on the edge like this inside that magnetic, compelling feminine embrace, the urge was so strong to stay there for one more second, deep inside your alluring mate's dangerously fertile depths, and just let yourself cum.

And cum I did. I had no idea where it was all coming from, but my dick just kept pumping for what felt like days, and I loved every second of it.

All pleasure must come to an end, though, and eventually my pulses weakened inside Jill's pussy and my intense satisfaction was replaced with a keen sense of regret as reality came crashing down on me once again. I knew that as mellow and good and satisfied as I felt right now, my actions this afternoon would have lasting consequences for Jill, whether she wanted them or not.

I left Jill an absolute mess, my enormous load of cum filling her up to the brim and spilling out onto her bed, semen pooling in and on and under her beautiful naked body as she rolled off me. Almost immediately her eyelids began to flutter, and she gave me one final kiss before drifting off into her metamorphic sleep, just as I had after being fucked by Angie the night before.

I leaned over and kissed her cheek - my attraction to Jill was beginning to wear off now that I'd successfully cum in her pussy and spread my affliction further, but she was still my best friend, and I knew what she'd given up for me today.

I quietly let myself out of her room, sneaking down the stairs before almost running into Jill's incredibly attractive mom as made my way toward the front door. I'd never noticed just how sexy the older woman was before, like a more mature, bustier milf version of her nubile daughter. It was an odd experience being attracted to Jill's mom for many of the same reasons I'd been drawn to Jill, while simultaneously no longer being attracted to Jill at all now that I'd fucked her.

Anyway, as tempting as Jill's mom was, I turned down her offer of a hug to make sure that I didn't accidentally touch her with any residual precum. The last thing Jill needed was for me to make things worse by enthralling and fucking her mom too. Though I must admit that I was sorely tempted as I watched that juicy ass walk away down the hall.

I went straight home, which is where the full weight of my shame and embarrassment at what I'd just done to my best friend finally began to hit me. I'd not only immediately broken my promise not to spread my affliction, but I'd done so in the worst possible way, by taking advantage of Jill. I'd been too weak to prevent my treasonous cock from propagating itself, and all because cumming inside her tight little hole had just felt too good.

As I'd expected, my phone buzzed early the next morning. "Amy, what the fuck did you do to me?!" Jill yelled. "Why do I have a cock now?"

"I'm so sorry, Jill. You were just so sexy yesterday that I couldn't help myself, and... I, uh, kind of accidentally had sex with you and gave you a penis."

"Accidentally?!? How do you accidentally have sex with someone? Amy, I can't stop touching it! It feels so good, and it keeps leaking all of this gooey stuff, and it makes it all slick and it's so easy to just keep sliding my hand up and down, and I just keep cumming all over myself over and over again!"

"Yeah, be careful with that. Once you start touching it, it's hard to stop. Also, be careful with all of that precum - it basically hypnotizes any girl it touches into falling in love with you. Some of it was still on my hand yesterday when I touched you, and you basically seduced me from there. Oh, and you'll probably notice that you're, um, really strongly attracted to women now. Like, really strongly attracted to women. But try not touch them! It makes everything really hard if you do.

"Oh, and speaking of," I continued, trying to be as helpful as I could under the circumstances, "I've noticed that if you wear a pleated skirt, your bulge won't really show up as long as you can keep yourself from getting a hard-on. When you do start to get an erection - and trust me, you will - you can tuck it into your waistband until it goes away. Or just sit down or something."

"Amy, this is so fucked up." I could hear Jill panting in the background, and immediately recognized that she had started stroking again. I glanced down at the bulge my own semirigid cock made under the covers, trying to resist the urge for a quick, pleasurable stroke myself. I knew that the devious phallus was just biding its time, waiting for its next opportunity to ensnare another cute coed, fill her with cum, and inflict her with this same urge to spread itself to as many sexy women as possible.

I silently swore that I'd never do so again, but I also knew from experience just how empty that promise was.

"I know, Jill, and for what it's worth, I'm really sorry."