At the very least after stomping around the Quad for a while Melissa had decided to sit in on one of your classes, mercy that she hung her feet rather than placing them on the ground. It was a while into the lecture before you managed to get out of the groove in your mother's favorite shoes but at least you could hear the lecture the whole time. The teacher was talking about one of the new phenomena that afflicted people after men were all tiny, something about how people tended to overlook tinies when they weren't in a humanish shape, basically being unable to tell them apart from things they might look like. You got up to your desk with Melissa sitting at it and tried to get her attention from where you were just as the teacher was asking for someone to volunteer for the demonstration. The teacher mistook your waving for a raised hand and called on you and your mother to come to the front.
Melissa was happy that you had freed yourself and even if she didn't understand what the lecture was about really she figured if you were volunteering her then she must be able to help demonstrate. You couldn't protest at this point, the lecturer was Ms. Kane, she would definitely end up docking your grade if you went back on helping, but you were nervous about the content of the demonstration Ms. Kane's demonstrations tended to be a little 'hands on' for your taste. The tall woman with her hair in a tight bun looked down at you in your mother's hand and smiled.
"Just to get it out of the way, and make sure you were paying attention when I said what the demonstration would entail. Thomas do you agree to take part of your own volition. and you as well Mrs. Swift." You gulped as you actually had not heard what the demonstration would entail, you were busy climbing at the time but it couldn't be good if nobody else had volunteered.
"Yes, I'm uh, always glad to help understanding this type of stuff." seeing your willingness your mother swiftly agreed to take part as well, dropping you into the teacher's hand.
"Alright Mrs. Swift please turn around while I prepare the subjects, everyone else will know but you to demonstrate just how strong the effect could be." Melissa turned around setting her assets to jiggle and you were set down on the table, you didn't dare ask what you were supposed to do lest you be caught in the lie. Ms.Kane pulled something Tan and stringy from her desk and showed it to the class getting some giggles, you squinted trying to figure out what it was, but by the time you could protest it was too late. The hand closed over you squashing you and then pulling you thinly and then your arms and legs out even farther tying them together forcing you into the same shape as the elastic thong. You weren't sure how stretched your face got but you knew it would probably not be recognizable, you were now held up to the class to show them the differences. She then had your mom turn back around.
"Alright, Mrs. Swift to demonstrate how people tend not to recognize tiny men out of shape your son agreed to be stretched into the shape of a thong. One of these is your son and the other is an elastic thong, If the effect is strong on you then you probably will not be able to tell the difference." Truly Melissa couldn't at a glance, but she took offence at the teacher's words and did something rash.
"I think I can tell my son from a thong thank you very much. As a matter of fact I'm so confident I can I'll wear whichever one I say is the real thong!" She looked at you and the thong again and gulped a little.
Ms. Kane piped in. "That's really not necessary-" Your mother cut her off, with a curt shushing which annoyed her, Kane looked down at you and shrugged. "Alright, I'll tell you if you guessed right after you change in the bathroom" Kane said causally "So? which is it?"
Melissa straitened and you pleaded with her to notice something about you different from the elastic thong, there were a few things that could be spotted. for one you had knots tied rather than being all one piece and possibly your features. She nervously made a plea to get an advantage in guessing. "Could I- um feel them?" Ms.Kane knew the class understood that meant that she couldn't tell the difference by looking.
"Sure, go ahead." She handed over the elastic thong first and as your mother rubbed her hands over it she was frowning in concentration, and then she swapped it for you, unfortunately as she rubbed her fingers over your body she decimated the knots and made them look seamless and her thumbs covered important bits as she looked.
Melissa looked at the thong in her hand and back at the one she had handed to the teacher, the one she handed back had felt a little ichy in her hands and would probably be uncomfortable. Having not ever seen you pulled out in such a shape she couldn't imagine that your body would make for good material in underwear. With this in mind she silently decided that the thong she was holding, being much softer and smoother, had to be an actual thong and the uncomfortable feeling fabric she held before was her son. "Alright, I know for sure now, This one is the real thong!" She held you up on one finger and skipped over to the rest room adjacent to the class room before anyone could stop her.
You were stunned, she couldn't have actually mistaken you for that cheap fabric after getting up close and feeling you, no who were you kidding this was exactly the kind of dumb mistake she would make. You tried to get her attention so that she wouldn't wear you but any semblance of the ability to speak was already decimated, all you managed was a little buzz. The black yoga pants were down on the ground now and the panties you were about to replace dropped next. There was a smile on her face as her feet fell on either side of you, above sat only her meaty thighs and Thicc ass. She started pulling and needed to streach you even farther to get your 'straps' around her hips. Your face rocketed up her booty stopping half way in and pulling you a bit closer when she bent over to pull the yoga pants back around her ass causing it to clamp around your body. She stood in the bathroom for a moment appreciating how nice you felt between her cheeks. you screamed to try and get her attention but the little buzz you cause was lost in the rippling of her cheeks as she started walking.
Most girls had an ass too big for you to handle, but your mom really did, every movement no matter how small seemed to pull on your already battered body. She sauntered back out to the classroom and didn't even go back up to the podium before plopping down back in your chair grinding you ever closer to her asshole. Everyone in the room was shocked as they knew exactly what had happened, and knew Malissa had no idea.
Ms. Kane however was having non of it and got attention back. "Mr. Swift agreed to the demonstration he knew the risks. Everyone back to the lecture." Malissa felt that not being contacted about you meant that she was correct, all she had to do was wait for you to come find her again after reforming.