So, some long forgotten sexual fantasies from when I was in my early teens, some maybe even from preteen times, has come to my mind, interestingly, most if not all of these must come from before I discovered guro on the internet. So I tried and recalled a few more and decided why not write them down, maybe someone will even find some inspiration from them for their stories, which is why I post them in this thread.

Feeding myself to a girl

This is one of the earliest I can remember. It was a dream that felt like there must have been a lot of adventures in it, but I only remember the end where I’m in a small wooden boat and there’s also a girl with me and in spite of looking like a normal human girl she’s actually a human-earing monster. She haven’t eaten for a long time and won’t make it to the shore without eating anyone. But there’s only me around. So I tell her to eat me. She doesn’t want to, she hates herself for being a monster and says she would rather starve to death then take another life, let alone mine (as we’ve apparently gone through a lot of adventures together which made us fall in love with each other). But I insist because I would rather be eaten by a girl I love than have her starve to death on my hands knowing eating me would have saved her. And I guess I ended up successfully persuading her, though that’s the part where I woke up, I think.
Also, part which I’m not sure I recall correctly, but it might have been that even after all the adventures it was only now that she actually confessed to me she was a human-eating monster.

Clone factory

This one’s pretty crazy. It was actually about a particular girl in my class. Mid-back length brown hair, flexible body as she went in for dancing, and just a nice person. And in this fantasy she was my girlfriend and the two of us were the only people on the planet. And there was a clone factory which constantly made clones of her until the ground was buried far beneath a pile of bodies all over the surface of the planet (hm, I wonder what happened to oceans? Were they all filled up with bodies too? But then maybe it wasn’t even Earth). And they were probably all alive on top of that, as we both and thus the clones too were unaging and immortal, though maybe the clones could die if actively killed by me or each other. Since it was in my fantasy, that girl loved me so much she didn’t mind ending up as one of those clones (the factory copied consciousness too) that would just forever lie in the middle of that planet-stretching pile of bodies, if it was to please me. The new surface of the planet, far above the original one, is just the uppermost layer of clones lying around in a pile. Ah, none of them have any clothes by the way, as the factory doesn’t produce them. So I would live on that surface, also seeing no point in wearing clothes, and revel in a feeling that everything around is my beloved girlfriend (now that I think of it, this is probably the whole point of this fantasy). Wherever I step, I step on her, enjoying the feeling of her soft skin under my feet, and I can just lay down anywhere and be surrounded by her presence, maybe I can even dive into the pile of her clones. They are all alive and conscious, just don’t try to move until I tell them to, because it would be madness if each tried to not just be technically alive but also act like one. So from time to time I would just pick a random one or some of them and have fun with them in any way I could imagine. It probably didn’t involve a lot of guro fantasy back then, but it would fit quite well, I think. Then if I have had enough fun for now, I would just let the clone lie back on the ‘ground’ and whenever I feel like having fun again, pick any other random one. They’re all happy with such a routine, even if most would never even see me, just buried beneath other clones forever, because of how much they love me.
Then sometimes I would go to the factory to visit the original. The factory actually keeps working down beneath all the piled up clones, it is situated in a cave of a sort, only its walls and ceiling are the clones, and there’s also a narrow way up one climb up or down like a ladder (which of course also entirely consists of clones, you just climb their bodies). Though now that I think of it a sort of stairs would probably work better. But then again, apart from immortality we would probably have some inhuman strength and endurance, no need for food or sleep, so climbing a ladder wouldn’t be a problem even if it took days. Anyway, the original girl is down there in the factory, serving as a sample for it to work, and every time a new clone is made it would climb up the ‘ladder’ to what now is the surface of the planet and find a place for her to lie down, just to be buried by more layers of clones ages after. So sometimes I would take the original out of the factory (and she doesn’t wear any clothes also, because why even bother) and have fun with her too, but the factory can’t keep working without the original present, so after some time I would return her to the factory and I would return to having fun with the clones.

Robotic sister

In this fantasy I build a robotic girl to be my sister and lover. She is of course programmed to love me more than anything, or maybe rather than programming, she sincerely feels that way because I have created her? Anyway, I would bring her to school with me to brag to my classmates. As a robot she has superior intellect, or at least is super proficient at math and such, maybe inhuman strength, agility and such too. But apart from all that she’s also fully functional as a sexual partner, so I have her strip herself to show that off too. Another option is that she was actually naked all along and her clothes were a hologram, which is another one of her robotic abilities, with which everybody is also amazed. And another option is that instead of a hologram she can change her skin’s color and do it independently for each cell or whatever robotic skin consists of, which is used to make an illusion of clothes like with body paint (I didn’t use it to change the whole skin color to mimic different races though as she was supposed to be my sister after all). And then I would probably let all the guys fuck her to demonstrate that ability of hers too. The robotic sister herself will not feel any shame in all of that and instead feel proud for being such a great robot and for me to have created her, just as I am proud showing her off like that. The teachers will allow all of that to happen because they too are amazed with how great a robot I have built, so as an exception they allow any debauchery she brings.
I don’t think I had guro-directed fantasies about her back then, but now I think it can be used for those if a part is added explaining how she can feel pain just like humans do, only she can bear much more of it, also any damage can be repaired. And of course she takes the pain with pride.

Lovable vampire loli

This one actually had a story. Twin sisters befriend another girl about their age, or at least one looking so, but one day she disappears. They go search for her, find out where she lives, come to the place and discover her chained (I think I recall an image in my head of her being chained to a vertical cross or something vertical at least) and looking rather unhealthy like she hasn’t eaten for ages. Also no parents are seen around. The chained girl behaves aggressively, trying to escape the chains but also angrily shouting at the twins to get away when they try to come up and unchain her. The twins demand explanation and the chained girl, seeing that they would leave otherwise, provides one. Apparently she is a vampire, probably actually older than she looks, which is why she lives by herself, or maybe genuinely a vampire child, in which case it may be that it is normal for vampire children to live by themselves. Or she doesn’t remember her parents at all and her earliest memory is escaping from an orphanage as the kids getting sucked dry was becoming suspicious. She is sick of being a vampire though, having to take people’s lives to sustain her own, especially she doesn’t want to kill these twins because she has grown to love them. But the hunger also kept growing stronger and she knew she wouldn’t be able to resist it much longer, so she chained herself, feeling she would rather starve to death than take her loved ones’ lives. Their smell so close is driving her crazy now and she begs them to run away because with such an additional stimulus she isn’t even sure the chains can hold her as she loses control of herself. But the twins say they love her too, so she should have just asked and they would gladly let her drink all their blood. Like it’s not that big of a deal. Optionally the vampire girl says they only think they love her because of the magical vampire charm. And she is especially sick of having to kill people who fall in love with her, because it happens every time. Then the twins say it doesn’t matter if it’s magic or whatever that makes them love her, the fact is they do love her. And if it happens all the time, it should actually help the problem of being a vampire, because if all her victims are willing and do it out of love, she shouldn’t feel guilty about it, she should be happy for those victims feeling happy for giving her their lives. In the end either the vampire girl breaks out of her chains or the twins unchain her, either way she loses control and violently drinks one of them dry, whichever turned up closer (the twins themselves didn’t care which it will be so one didn’t purposefully come closer, they just let the chance decide). She’s probably so crazy with hunger she just bits off a piece of her neck, so everything is bloody, messy and painful. But neither the girl being killed or her twin sister resist or try to stop her, instead they are both happy for their vampire friend to finally satisfy their hunger. As the vampire girl finishes her meal and comes back to her senses, she starts crying over her dead friend’s body, but the other twin comes to her comfort. “But I’ve just killed your sister right in front of your eyes,” the vampire girl says, blood still drooling from her lips, and the surviving twin kisses her. Then she says everything is alright and she will stay with the vampire girl forever, flee together with her even if it means abandoning all of her life, her parents, friends, everything, she will always be there for the vampire girl and help her hide, find new food, or herself become food for her whenever she asks and even if she doesn’t but does need it like just now. Also if a question comes up what if the vampire drank this twin instead, she would say it would be alright anyway because she knows the other twin would have done all the same for the vampire girl.
And then it can be a start of a whole series about these girl’s adventures.
Ah, also I think there was an option where the twins also shared a lesbian relationship. Even if they didn’t, they were most precious for each other, but their love for the vampire was such that they didn’t mind giving their most precious thing for her sake, if anything it only made such a gift more meaningful.

Kids' dragon

In a modern world (I imagine XX-XXI century) where dragons are believed to be just a myth, a group of kids find a mysterious egg somewhere far from adults’ eyes and witness a dragon hatching out of it. The dragon happens to be feeding on people, though I wonder how the kids knew that. Can the dragon talk, and right after birth on top of that? Or maybe they just assume it feeds on people because that’s what the stories tell? Might actually be even more fun if it turns out it doesn’t really need to eat humans, everyone just assume it does. Anyway the dragon consumes a whole person at a time and it gives it enough energy for a lot of time, maybe a whole year, or at least a month. And since the dragon is still small, a small person would do, that is, a kid. So the key idea is that the kids decide to raise the dragon while keeping its existence a secret from parents, and to feed it they use themselves. Whenever the dragon is hungry one of the kids would strip and let the dragon eat them, the rest of the kids trying their best to pretend they have no idea where that kid disappeared to. Neither the fact that the dragon has just eaten their friend, not the fact that one of them is next, makes them hate the dragon. They love it as their pet and their cool secret they keep from adults. What they hate is that if they reveal its existence to adults, the adults will most probably kill it, so they try their best to keep the secret, taking it very seriously. But as the numbers of the original group of children who have found the dragon become low, they might let some other friends or siblings of theirs into the secret to keep the whole thing going. Might even go on for generations with older kids passing it to younger kids before feeding themselves to the dragon.
Optionally some sex is involved, but maybe on the other hand the kids purposefully refrain from sex because the stories tell that dragons prefer virgins?

Class's vampire

A mix of the two above where there’s a vampire girl in a class and everyone loves her because wow vampires are so cool. And they let her drink them up occasionally, which is fatal. The class probably becomes known as haunted for its students to die so frequently, but they try their best to keep the real reason, the existence of the vampire, secret from the adults. New students arrive instead of dead ones so that the class doesn’t become empty. They might be afraid at first when they hear the class is haunted, but when the other kids let them in the secret, they too think a vampire is cool and agree to protect that secret from adults and don’t mind becoming the vampire girl’s food one day. Of course, in this story the vampire girl has no moral problems with being a vampire.
Optionally some sex is involved.

Two immortal masochistic lesbian lolis

And they can also fly superman-style. So basically they go around having all the fun they can come up with. Of the two options I actually remember one is falling from high altitude, maybe from orbit even, and maybe not even falling, but flying down with acceleration (so faster than terminal velocity) right onto a big spike on a roof of some building, impaling themselves onto it (I imagined them falling flat with their bellies onto it). Now that I think of it, they’ll already have quite a lot of fun on their way down with reentry heat. Another option is they fly all the way to the sun and dive into it. And, well, actually that’s it for that idea. There were probably some more options that I can’t possibly remember now.

Chair made out of a girl’s bones and skin

This fantasy was also about a particular girl in my class, but not the same one from the clone factory fantasy. Short brown hair, always shining with a cheerful smile, and a straight A student on top of that. In one word I can only describe her as sunny, or at least that was my impression of her. So in this fantasy she would willingly have a chair made out of her and give it to the class as charity. So it would be used in our classroom, maybe in place of a chair that was lost or broken, so the classroom missing a chair would be why she came up with the idea to make one out of herself in the first place. She is doing it just out of her natural kindness, not because the idea turns her on or because she feels obliged or something. She’s sincerely happy to help her class by doing it, but also probably doesn’t feel like it’s a big deal for her to do it. And of course I imagined I would be the one sitting on that chair, each time doing so would make me fondly remember the girl it was made of and her kindness.

Urinals made from girls’ heads

in the boys’ toilet in the school. The heads are kept quasi-alive, exhibiting only reflexive reactions and the only reflexes remaining in their brain is swallowing and sucking, so you can use them both for peeing and for blowjobs. The girls go for that willingly because there’s nothing that can make them happier than giving pleasure to many people, this motivation also doesn’t come from any sexual desire of their own, but just out of pure kindness. They might also need to train a lot to suck dicks and drink semen and pee in order for those reflexes to remain in their brain even when their consciousness is dead.
Though as a current me, I wonder if having them retain their consciousness would be better, letting them actually experience being urinals.