The nurse's office at this school is quite larger that a typical one. You've been in it before in order to eat the previous nurse, but beyond that, you never got an appreciable look around.

The waiting area is a jumble of chairs unanchored to the ground. Their skewed position gives away the idea that there often ended up being a lot of activity going on with those who waited in this place. This is confirmed by the presence of a few sleeping fatties drooling in those chairs. Four students, two of each gender, all occupy opposite corners of the waiting area, with bulging bellies wriggling around as they napped.

To the left is the proper ward: a series of brown leather beds and patterned pastel cabinets with countertops align either side of the wall, dividing each bed into a section for the nurse to help them individually. Some of the beds have, plain as day, sexual activity going on in them: students and what looks like even some adults are going at it, heavily breathing as they gyrate under sheets. Other beds have stomachs protruding upwards as people rub their person-filled bellies and fingering themselves. Some beds have the obligatory combination of partners eating out or sucking off the more predatory populace of the school. At the end of the 30 or so beds is a crazy hi-tech contraption that looks essentially like a teleportation pod or transformation chamber you'd find in movies with mad scientists or alien species.

In order to examine it, you need to of course get to the machine. But you're not going to pass up the appetizers laid out for you on your way there, no sir. So, you get just a sampling. You grab the pudgy girl to your left, sleeping off her meal--she's nude, so you don't need to prepare her in any way. You just lift her up effortlessly and down her headfirst. You repeat this exact algorithm with the next girl, and then a boy, and then the last boy, and pat your still-completely-flat stomach. You move on to the next sampler.

The first occupied bed is a louder couple, the girl trying to keep her yells restrained as the boy pounds her. You rip off the sheets and they go on as if nothing happened. You cradle your body around the boy's back as you reach behind either side of the girl, and pull them both up. Tightly squeezing them to your body, their groove is thrown off, and they pay attention to you but too late, as you take in both their heads simultaneously and push them into your mouth together. They come in and go out very quickly, so you head to the next bed with action. This one is an undercover blowjob, so you take the girl from behind and eat her, and then slurp up the guy feet-first, pushing down his erection with your hand. With a bit of pressure, he lands in the bottom of your tummy satisfyingly.

This continues as a general trend. You take the occupants, almost none of whom resist due to the assumption of the potion, and just steadily gulp each one. Some of the teachers are actually the biggest resisters, eating their partners and their neighbors to weigh themselves down as they struggle to stay out of a stomach, clawing at the bed, the cabinet doors, throwing things from the counters, but you just suck in everybody who manages to get a body part past your lips. That actually turns out to be everybody in the infirmary, a little over 20 people.

Finally, stomach feeling about a third full give-or-take, you make your way to the machine. It's an upright cylinder about ten feet tall, with a sliding frosted-glass door, a bunch of vents constantly making noise as they suck in air, and a lot of fancy antennae coming from the top. These antennae hang metal spheres of various sizes, and the rods that hold them have different colored bands wrapping them. And as you look at them, the red "mobile" of chrome spheres begins to spin rapidly, and steam starts filling the chamber. You watch as shadows appear past the frosted glass, growing and forming together as time passes.

In a mere 15 seconds, the shadow is the shape of a person, who slides open the chamber door and coughs once as she stumbles out of it, completely unclothed. "God, they use waaaaay too much steam in that thing," she tells you as she gropes the rack (hehe) on the wall to the side of the machine, where dozens of robes are hung.

It seems you've found how the reformation potion works.