You suddenly feel at least twenty pairs of eyes staring at you now that the girl drew attention to you. The kids in the room look no older than first graders, so Sam could be in here, but something feels off about the atmosphere. There's some feeling, maybe a certain smell that's making you feel rather strange about the situation. It kinda smells like after you get done masturbating. Unsure what to do or say, you stand paralyzed in the doorframe. The girl who let you in, small and tan with brown pigtails, seems to be eyeing you up in a weird way.
"Oh, you must be who the office sent down! Dillan, you can go back to you seat, then." says an adult's voice from behind the girl who opened the door, presumably the teacher. He's a young guy, probably in his twenties, with short dark hair and dressed rather casually for a teacher. You see the student he was referring to rushing back to his seat from the front of the room, holding tightly to the waistband of his pants. "You're from the middle school, right?"
"Yeah, I'm in middle school..." you say slowly. "But I'm kinda looking for--"
"Excellent! Alright class, looks like we won't need any volunteers now that we have, uhh... what's your name again?"
"Tommy. Look, I'm just here--"
"Tommy! So Tommy is going to help us practice what we've been learning this week. And what is it we've been learning?"
"Spitroasting!" the whole class recites. What the hell? Is this some sort of cooking class? Why would they be teaching a skill like this to first graders anyway? Don't they barely know how to use a microwave? And if it is a cooking class, why are there no materials for cooking in sight?
"That's right! Molly, since you found him just in time, why don't you help me show the class how this works?" The teacher seems to be referring to the girl that let you in, who giddily skips over to join you and the teacher at the front of the room. "Do you want the front or the back?"
"Mmm... I like the back better!" she says after a moment of consideration. What are they talking about, "front or back"?!
"Alright. Now Tommy, you come over here and lay down over this desk here," the teacher explains, guiding you to a desk set up in the front of the room. He guides your body to bend over the desk so that you're longways to the class, ignoring any attempts from you to try to explain what you're actually here for. Molly takes her place behind you, while the teacher stands in front of you. "Now, when you get older and stronger," he says to the class, "you might not need to use a desk; you'll probably be able to hold them up by yourselves, but for practice we'll keep Tommy here on the table. So, Molly and I will do a little demonstration, then everybody will get to take a turn."
You were already concerned over being bent over a desk for some sort of "demonstration", but things really take a turn when you seat the teacher unzipping his pants! From out of his fly plops a huge, semihard cock with an extremely thick tip that's quickly getting thicker, along with plump hairy balls in a wrinkled sack. It reeks of what you smelled earlier, that musky smell of masturbation, but also of manliness you never thought could smell so strong. Realizing this is definitely not somewhere you want to or should be, you attempt to get up, but the teacher firmly grabs your arms and moves them under the desk, and you feel the hard plastic of a ziptie binding your wrists tightly.
Before you can protest to what's happening, the teacher grabs your head and holds it in place with just one hand, guiding his now rock solid 16" cock to your lips and forcing it between them before you even have time to prepare against it. He tastes sweaty and musky, and it feels like your jaw is going to be dislocated by his girth. Luckily he doesn't shove it too far it, but your torment is far from over. Behind you you can feel Molly's small hands working your pants down your legs, exposing your bare ass to the class full of kids! You kick and flail and try to stop her, but your legs are effectively bound by your own pants, leaving you basically helpless.
"Take note of Molly's form, everyone," the teacher says to the class. "See how she's getting him prepared before diving right in? That's the sign of a considerate partner." You have no idea what he's talking about at first until you feel a pair of hands spreading your butt cheeks and a few puffs of warm breath down your crack, followed by a hot, slimy tongue running up the length of it. That girl is actually licking your ass?! What the hell kind of class is this?! "Plus, saliva is an excellent lube," he continues, "especially if you have a bigger dick than they're used to. You don't have to worry about that too much with our friend Tommy, though; as I understand he's volunteering for credits in his 'Advanced Penetration' class, so he's practicing to take just about anything into any of his holes!"
What a case of being in the wrong place at the wrong time; they've got you confused for somebody else! Even worse, they think you're somebody that likes this sort of thing! You wish there was some way you could tell them, "You've got the wrong guy! I don't like this at all!" But all you can do is look over the sea of faces in the class with pleading eyes, hoping in vain for one of them to help you. But you can immediately tell none of them are going to let you get away: just like in the rooms you passed earlier, each and every student, the girls included, have pulled down their pants/skirts and begun stroking their own freakishly huge phallus. These are first graders, but their dicks are more than twice the size of yours! And then you see him.
At the back of the class, stroking a thick, veiny, 13" rod, is your own little brother Sam. A huge, smooth ballsack is bouncing against his chair with each of of his strokes, stirring up the thick cum inside. You look at him with pleading eyes, hoping he'll save you; you know he recognizes you, but he just grins at you and continues to stroke his shaft. You never even knew your own little brother was packing something like this! Given all the other huge dicks you've seen here, could that have been why he got accepted and you didn't?
Suddenly you feel Molly replace her tongue at the entrance to your ass with something much bigger and harder. You feel her pushing hard against your unwilling asshole, until finally the tip slips inside. If your mouth wasn't full of cock you'd be screaming in pain.
"His ass is really tight, Mr Barnes," Molly comments as she pushes more of her cock into you. You have no idea how much dick she has since she's behind you, but really any amount is too much as far as you're concerned. "Are you sure he's used to big stuff in here?"
"That's a skill you learn in those classes," the teacher explains. "In addition to being able to take on lovers of any size, it's important to keep your holes tight and fuckable so they'll enjoy it to the fullest. It's an important class to take if you wanna go on being a sub."
"Mmm, it definitely feels great!" Molly says, picking up the pace. You can feel her pelvis smacking into your ass now, as well as a heavy ballsack rather painfully slamming into your own pitiful scrotum, telling you she's entirely inside you; if you had to guess, you'd say she has around 12" inside you.
Mr Barnes, who had been taking it easy on you thus far, once again grabs your head firmly, and begins to shove the rest of his dick down your throat. Tears stream down your cheeks as you choke on his mammoth cock, and he too hilts inside you, pressing his moderately trimmed bush against your face, the curly hair tickling your nose. He then joins Molly in thrusting into you, and it feels like both their dicks are entering and leaving your stomach from opposite ends. Now you understand why they called this a "spitroast".
"Ahh, Mr Barnes, I'm getting close to cumming! Should I put it inside him?" Molly moans as she assaults your ass harder and harder.
"Go right ahead Molly; his teacher probably wants us to pump him with as much cum as possible so he can learn what it feels like to be a cum dumpster," the teacher says nonchalantly, still fucking your face. As soon as he says this you feel something like a cannon going off in your bowels as Molly begins draining her nuts into you. Huge, thick blasts of girlcum rocket out of her one after the other, quickly turning your anus into a creamy white mess. At the same time the dick in your mouth begins to errupt, but as the teacher drives his pelvis into your face as it happens, the cream is deposited straight into your stomach. Still thinking you enjoy this abuse, he pulls out toward the end to drop a few gooey ropes on your face as you gasp for air. You really thought you would suffocate, he held that in there so long!
"Alright, who's up next?" Mr Barnes asks the class.