Note: this is an attempt to translate images in the style of manga from my imaginations into text form
also no name is given because I cannot name anything

Tags: [GURO][CONSENSUAL GURO][RYONA][MAGIC][TEACHER][BIG BREAST][BREAST DESTRUCTION]
[PUBLIC USE][EMOTIONLESS SEX]

Main Character:
Big breast magic teacher with long hair. thin cloth strip cover just below nipples and not much else,
mini skirt, high heels, thin door handle nipple rings, black thights
extreme masochist, face does not show emotion in almost every case, extreme recovery magic

rough reference/inspiration: https://www.pixiv.net/artworks/88415284

ch 1. first practical lesson class
scene: standard half circle podium lecture hall (dirt floor for easy repair) + teacher desk and chair
remark: everything in this chapter happen while MC's face never really show expression

MC pointing at black board in usual skimpy cloth, then walk around to students
one of male student failed to resist lustful urge and pull on MC's nipple ring which expose her nipple
MC invite that student to the front, and annouce that class will learn practical lesson by demonstration
MC uncovered her breasts and order the student(S1) to pull her nipple ring hard
she then take out a small knife which startle S1 and he let go of her nipple ring
MC order S1 to pull again then stab her breast with the knife, she look directly at S1 then stab again multiple time
MC order S1 to cast healing on her breast which he did so timidly and not very effective, to MC dissatisfaction
MC say she allow S1 to just touch her breast without restraint and lick off the blood while he is at it
S1 did so healing MC breast while groping and licking it.
MC hand S1 the knife and say that he should try some more and he comply
S1 stab MC breast then heal it and lick the wound multiple times, smoetime in different order
he then stab below her nipple and then suck on it for a while before healing it
MC say thanks for S1's participation and say that she would like to demonstrate more complex magic
MC point at a flat tits female student(S2) and invite her to the front
MC taunt S2 and say that she know how much S2 hate her huge breasts which S2 did
MC apply REGEN magic on herself and taunt S2 a bit more, offer her breast for S2 to destroy by all mean she has, hand, the knife, or even magic
S2 snapped and begin attacking MC's breast by slapping them multiple time, which the nipple rings get in the way
she then grab the nipple rings, pulling and twisting them
S2 push MC down, sitting on the floor and punching MC breasts until MC's back is on the floor
S2 then get up to grab the knife, MC's breast show sign of being recovered
S2 sit on top of MC and start stabbing MC's tits repeatly while laughing, S2 has lost it
S2 do on laststab and left the knife in MC's nipple and start casting fire magic, crowd concern noise
S2 blast small fire magic at point blank to MC's breast multiple times until smoke cover both of them
S2 stop, getup, and MC wave hand to clear smoke, revealing her breast which barely hold the shape and burnt
S2's hand and cloth also get burned but she is not paying attention to them
S2 chant bigger fire magic and MC get up on her feet, a little bit staggered, and push out her breast which begin healing a bit
S2 finish chanting and fire at MC's breast which make MC stagger back a few steps,
MC breast is now fully burnt with knife sticking out, multiple stab wounds, and nipple rings which is unscratch
S2,who is breathing heavily, jump at MC and push her down again and resume her attack
S2 clawing and pulling the burnt breast of MC causing the burnt skin to tear and blood spilling
S2 pull out the knife and stab MC in her other breast a few more times before throwing it away and move to the side to lie on her back
S2 now sane again notice she is barely cloth and try to cover her flat chest and burnt panties
then she noticed that her hands is also burned and red but not charred , and have a few bruise and cut
MC get up to sitting position and just heal S2's hands instantly and thank S2 for her effort
MC then stand up and present class her mutilated and burnt breast, call the knife to her hand, and stab her nipple again
MC then stab her other breast a few more times before stabbing the nipple then twist her knife back and forth and left it there
MC urge S2 who is now sitting on the floor to just touch her breast which is healing not too rapidly
MC grab S2's hands, then remove the knife and push S2's hands into her breast and fondle them
MC then grab S2's arm and began paizuri with it while her breast now heal to almost normal
S2 now absentmindly pull her arm back and fondle MC's breast some more then start sucking and play biting her nipple
MC produce cloth from some where for S2 and return S2 to her seat,
MC then present class her fully healed breasts and cover them up(as much as her cloth does) again and end the class (without cliche bell sound)

{chapter end}

Note: I write this and ch.1 idea in the same sitting and a half

ch ??. bonus class
additional tag: [AMPUTEE][EYE PENETRATION][BRAIN FUCK][INNER ORGANS][SNUFF]

scene: same lecture hall, after some sort of exam result, note that student S1, S2, etc is not always same person until name can be given
also little to no healing magic appear in this chapter so wounds stay as is

students all present in their seat, MC walk in along with a cart thing
noticable both MC and cart are fully covered in cloth
MC look around the class and remark that everybody is here, and this is a bonus class for all of them and they have all the time in the world for thise
crowd make noises
MC unwrap herself revealing totally naked body, without even the nipple rings
"oh my, let's start the bonus class of today shall we?"
MC say that she will call student in order of high to low test score (for context only) to the front one by one
MC call for the first student and ask what he like about her, and he say he like her lips
blowjob then proceed and the first student(S1) ejaculated in her mouth which she present it to him
S1 ask MC to swallow the cum which she did then ask if S1 want anything else, he can do whatever he want with her lips he know?
S1 is satisfied and return to his seat, MC call for next student
S2(also male) say he like her nipple and MC present it to him to which he promptly grab her breast and suck on it
he also bite and suck a bit more and ask he can really do what he want with it right?
MC reply yes, everything so S2 ask for the usual knife which MC repond by unwrapping the cart she brought revealing multiple tools and weapons
S2 say that he like where this is going, crowd make noises
S2 take the knife and began switching between carressing MC's nipple with the tip and sucking them
S2 than do shallow stab with the knife into MC's aerolae and cause her to moan a bit which is unusual
S2 stab a few more shallow wounds and biting and sucking the nipple hardly
"Ahhh~ you sure take your time, don't y-you?"
"*slurp* this feel so good teacher, I want more *slurp*"
"u~ you sure do, but everybody is waiting you know?"
"*slurp* ahh teacher, I like your nipple so much can I take it with me?"
"actually aa~ you can"
"*slurp* eh?"
"fufufu~ sure, go ahead, take it with you"
MC urge S2 to take her nipple by guiding the knife into her edge of aerolae
which S2 take it as a sign and stabbing into the spot, then he drag the cut with minimal resistance around her aerolae
MC moan a bit more and S2 try to pull out the nipple but it still stuck in the middle
MC guide S2 to cut the rest and then hold the cut nipple in her mouth, she then pass it on to S2's moust and kiss him
crowd make big noises, everybody now know ow this work S2 return to seat with the nipple
S3(female) is called and she want MC's heart, which MC agree but say that she will have to wait until everybody get what they want
so in the mean time MC bury S3's face in her cleavage and have her listen to MC's heart
then they kiss, fondle, and fingering for a bit before return
S4(male) say he really love MC's eyes so MC present one of her eye to him, holding it open
S4 began touching MC's face then start to lick her eye passionately for a while
MC ask if he want to take it with him and S4 said yes and try touching the eye with his fingers
S4 is afraid of ruining the eye so he hold back and MC ask if he want her to do it for him, he agree
MC remove her eye with eye stalk still attached and show it to S4
"See? it is easy, just be a little bit gentler than usual"
S4 began to lick MC's out of socket eyeball and MC retrieve the knife asking him if he would do the honor
S4 look at the knife but instead caressing the eye and choose to bite the eyestalk off instead whild MC holding the eyeball for him
MC put eyeball on her outstrached tounge and S4 lick it and pick it up with his mouth, before hold it in his hand
S4 then start licking the now empty eye socket then he present MC her eyeball shich she kiss it goodbye and return to his seat
S5(female) say she like MC's arm, which she had been fisted by before
MC start by touching and carressing all over S5's body then start fingering her
S5 tell MC to wait a bit then select a saw from the cart
S5 want MC to fist her again while she will slowly saw off MC's arm so both get into position
(optional) first try is very akward so S5 change the saw and position while MC heal up her arm to start again
MC fist S5 while S5 saw her upper arms, MC make S5 climax before her bone get saw off,
S5 then proceed to move MC's arm by herself and saw them off completely
S5 return to her seat with MC's arm in her vagina, MC stop the blood and call for next
S6(male) just say he want her womb, which start by doggy style (one arm) and other fuck positions
S6 then get a larger knife and begin cutting into MC's stomach with her guidance to retrieve the womb
he cut then off along with her vaginal canal and all then procedd to put his PENIS in it immedietely
"*pant pant* oh my, you sure ask for the imprtant part *pant pant* you might have to share it later you know?"
S6 retreat to his seat still using MC's womb as onahole while recieving stare from everybody else
MC can nolonger stand now, call for next one
S7(potion futa) ask for MC's tounge, MC say she still need to use them so she should wait
mean while MC lick S7's body and gave her blowjob and return her to her seat
S8(male) directly ask for tit fuck, which MC answer by paizuri
S8 then ask for breast penetration, so MC get the knife and began to stab inside her wound where the nipple was cut off
then she twist and cut inside her breast and remove a vaguely cylinder lump of fat and urge S8's PENIS in
S8 proceed with the penetration and cum, he then ask to kiss and lick her eye socket as he will not take anything, MC agree
S9(female) love MC's legs and want to be step on but MC can barely sit so S9 start by licking MC's feet
up to where her vagina was, she then get an axe but decide against it so she insert MC's leg into her vagina
she then cut off MC's leg using magic, use it to please herself while licking MC's other foot
S10(male) is mostly the same as S9 except he want his balls trample too so MC weakly try to do so
S10 even try his best to shove her remaining foot into his ass before chopping it off with an axe
S11(female) ask for MC's whole breast, she fondle them,bite them, stab them, and use all kind of magic on them
before finally healing them before slowly cutting them off with a knife
MC is on the floor, heart showing inside rib cage, not much is left of her
S12(female) don't even bother to ask and go for MC's remaining arm and began to slowly break it
with the use of mostly neglected tool cart,
finger by finger and centimeter by centimeter of MC's arm is destroy by S12 who masturbate all the way
and sometimes even masturbate with the tools, like stabbing herself with knife, sword or use spiked club as a dildo after she used them on MC
next is S13(male) who is not the last in class but there is almost nothing of their teacher left now
crowd making displeasing noises and MC does not heal like she usualy does
S13 help MC up into her chair and ask for her brain,
MC tell him that he will have to wait a bit and call for S7 and S3
MC tell S7(futa who want toungue) to go for it so S7 start by deep thraot MC hard and cum very quickly
S7 then have MC sticking out tounge and spit on it follow by just kissing her
S7 pull out MC's toungue again and do shallow stab with the knife, then lit a small magic fire onto the tounge
not satisfied, S7 lit her cock on fire with enhancement magic and deep throat MC again making charred smell
S7 then tell MC to stick out her toungue and directly put her flaming PENIS on it to show everyone
she then use the knife to remove MC's tounge from the base deep inside the mouth then lick it with her own toungue
gasping for air, MC tilt her head slightly to signal the waiting two, it is now their turn
S3 who can no longer hold back cut open MC's stomach even more to expose her beating heart
while S13 move to the back of the chair, holding MC's head up with both hand
the crowd make more dissatifying noises even more seeing their turn may never come
while S3 struggle to hold MC's heart in her hand by inserting her hand from below S4 casually approach them
S4 ask if S3 need a help and proceed to remove MC's exposed ribcage, which S3 is happy as she cannot think of that way in the moment
S4 then ask the MC wether he can have her remaning eye as she won't be needing them anymore, MC's weak grunt make an impression of "whatever, go for it"
while S3 busy burying herface into MC's open chest cavity, S13 began talking to MC
"You know teacher, I am not very good at all those paper things"
"*aa~*"
"But I can do this easily"
S13 cast magic to slice open MC's skull exposing her brain matter in a perfect shape
with S13 open MC's skull, S4 began licking MC's eye then pluck it out from the socket with swift motion,
inserting it into his mouth and biting off the stalk and began to retreat
S13 gesture S4 toward the axe as he is backing out while licking and fondling MC's brain
S3 withdraw her face from MC's heart and begin chanting expansion magic, clit expansion magic
S3 then insert her PENIS shape clit into MC's chest cavity, rubbing it against her heart and everything else
S13 take out his PENIS while licking MC's brain and gesture to S4 with the axe toward MC's neck
S4 take stance and swing, S3 orgasm at the same time MC's head is chop off,
S13 holding the head plunge his PENIS into MC's brain like trying to have sex with it,
which cause it to slowly break apart from excessive force
S3 rib out the heart from now headless MC and push her enlarged clit into the artery using it as some kind of onahole
S13 do a few more thrust into MC's skull then ejaculate
with the clearly dead body of their teacher fallen down on the floor, and in their hands, the room gone deadly quiet
they know that their teacher can come back to life somehow, probably, but that has never happen before
then the door to the hall is open, coming in is another cloth covered cart, and their teacher in the same wrap, good as new
"Surprise? none of you expected to see me again this soon right?
"So, today's lecture topic will be"
new MC unwrap the cart showing jars, tubes, and all kind of containers and more tools
"preserving the speciment and first look at artificial lifeform"
MC unwrap her cloth revealing once again a fully naked body without anything on it, not even her trade mark nipple ring
"So, shall we continue? <3"

{chapter end}

This is actually quite interesting. Especially the second (well, ??th) chapter.