To be fair, you had gotten an idea like many other of the male students, including the female ones. Upon hearing the announcement about changing the male students as well, you thought that like with the dicks the girls had gained, you guys would get big dicks too, or atleast, a much larger set of assets.
It was still wierd, although it didn't become too big a shock the next day when you entered the gym together with your fellow guys. Then left with jiggling tits.
Watermelon sized tits.
You like many other of your former males, were wildly unused to the much different centre of gravity you now had, each step felt clumsy, almost hopelessly trying to mimic the female sway as recommended by the clinic workers carrying out your change. And that fact could be easily seen as with even the slightest movement, your tits flew away (metaphorically of course) and your body visibly shook as you repeatedly looked to be on the verge of falling.
As the crowd of ''Girls'' leaving the gym-turned-temporary-gender-clinic slowly dispersed into the halls into the awaiting crowd of dickgirls, almost all of which currently had raging boners. You were of course seeking out your girlfriend which proved to be more difficult than you anticipated, almost not even noticing the beginnings of a gradual increase in moans which reverberated through the halls and the numerous dickgirls occupied with either jacking off to the ''boys'' highly attractive/sexualized bodies or helping them 'explore' their new bodies. You were also occupied in keeping your fragile balance intact and not dwelling on your new features and the fuzzy warmth down below from the sight of so many massive, juicy cocks. After a bit of walking around semi-aimlessly trying not to stare at the numerous couples furiously 'exploring' eachothers bodies and their newfound sensations you found your girlfriend slowly stroking her 16 inch cock at the gradually 'devolving' scene throughout the hall.
''Oh. My. Gosh.'' Your girlfriend gasped as she noticed --and recognized-- you slowly walking towards her trying to form a smile on your beet-red face, her eyes immediately taking in your body and staring at your melons stretching your shirt to their breaking-point, your arousal making itself terribly obvious as your large, erect nipples poked through your shirt effortlessly. Compared to her, you (and by extension, all the other ''girls'') were wildly curvacious, with almost ludicrously giant tits, wide hips, juicily thick thighs, a plump ass and fat lips almost purpose made for kissing. you were a mans wet dream (maybe not becoming one but...). Your girlfriend however had another thing going for her, she had a massive 16 inch cock ready to pound your ass into oblivion, and on another note she was ever-so-slightly taller than you, mostly because you and all the other ''girls'' lost a fair bit of height to their change of gender.
''You're... Gorgeous!'' She gushed, essentially drooling at your overly curvacious body which awoke a distinct worry inside your still barely-rational mind struggling to deal with the furious hormone issue raging through your body, it worried you more when your girlfriends cock (which was no longer being stroked) didn't seem to stop getting harder and was even starting to furiously dribble precum. ''Uh. Thanks?'' You reply to your girlfriends... Compliment, in your new, womanly voice still not accustomed to it but still unsure what to exactly think of this whole situation and the steadily louder and even more frequent moaning reverberating through the hall joined by various wet slaps as numerous couples and random people began shamelessly fucking, even teachers were among them, it seemed like this situation was steadily devolving into an orgy, but you being too preoccupied with your girlfriend and her increasingly worrying stare failed to notice the fact more or less everyone present were sexually active in one way or another, and the fact several students and teachers were busy filming it.
So you should really have expected that the situation with your girlfriend would have become similarly sexual but nonetheless you gave a startled moan as your girlfriend suddenly dived forth into your bust, pushing her head as deep down as possible while both her arms gave you a shockingly strong bear-hug. ''So soft!'' You barely heard her murr as she nuzzled your mighty bosom through the fabric of your very strained shirt, barely kept from tearing apart. Her tight hug was the only thing keeping you from falling to the ground as your legs shook almost like noodles from the sudden act and pleasurable sensations wracking your body.
''S-s-stop!~'' You try to say without being interrupted by a moan while trying to shove your girlfriend away, but you find yourself incapable because of your much weaker muscles and the sheer pleasure radiating from down below and from your fleshy mountains, your underwear steadily soaking itself in self-lubricating juices. ''No!'' Your girlfriend steadfastly refused from amongst your giant mounds, her arms pulling tighter in response to your barely-coherent efforts to push her away. Had your mind been more coherent and less busy being confused at all these new signals and sensations, you would have imagined your girlfriend pouting adorably. After a bit longer she almost seemed to get tired of nuzzling your soft chest and twirled around to behind you before beginning to grope your chest, elliciting heavier moans as she impatiently ground her throbbing penis against your plump buttcrack held in ill-fitting jeans that like your shirt, looked like it could tear apart at any second.
''Mmnnh-oh! please, I can't take it anymore! Pick a position, quick! I want this to be atleast consensual! I just need to cum!'' Your girlfriend cried as she hugged you tighter, pausing her merciless groping as she instead took hold of the rim of your shirt and dragged upward, pulling them over your mountainous mammaries and sending them tumbling down, the two oblong masses exposed for everyone to see and to be recorded by the well over dozen phones either focusing on groups or single pairs, even more phones were just strayed around set to record, viewing a great many different acts of sex, in one case a dickgirl teacher was recording her mercilessly banging a rowdy student together with another teacher, dualteaming the busty ''girl'' while a trio of student dickgirls jacked off to the scene, all five intent on covering ''her'' in semen while fucking her silly.
Unlike many other of the couples at school who were currently ravaging eachother in almost animalistic displays of love, your girlfriend was successfully restraining herself from immediately fucking you in the ass until her already crazy libido won over her, for now she was successfully holding off from roughly groping you, giving your mind a reprieve from the maddening pleasure so you could have coherent thoughts and actually give 'consent'. While technically school was in session by now it was clear that the overwhelming majority of students and even teachers didn't give a flying shit about that fact, infact the only students who did give a shit weren't present at the increasingly orgy-like situation in the hall outside the gym. And indeed it was becoming more like an orgy by the second as well over half the present students were busy fucking while the rest either jacked off or helped the remaining ''girls'' not being pounded into oblivion 'explore' their bodies without having their ass, pussy or mouth obliterated by their aching monsters begging to be jacked off or rammed inside some hot, steamy hole.
And as your mind cleared enough for some semi-coherent thoughts you thought about your 'consent', spurred on by the sensation of a long, fat rod ready to explode at any time you wracked your hazy mind for what kind of position to choose. All while the clinic staff occupying the gym watched the scene in the hall with worried expressions. ''Good thing we prevented them from impregnating eachother.'' One of them mumbled, frowning at the unfolding scene of depravity. ''How are they going to learn if they're all so horny?'' A female worker said, blushing at the scene. ''Lets take the back door...'' The eldest worker present said, most of them turning to leave with most of the packaged equipment while some stayed to watch out of mild curiosity...
Now...