The Human Explorer

>You've known your slime waifu for awhile
>She started off pretty simple with just wanting to be fed with your semen but she grew more intelligent as time went on
>There was one peculiar thing that you noticed.
>Namely she took more interest in the human body.
>You've caught her observed your simple mundane movements; how you walk, your posture, seeing you breathe, and so on
>And then she pestered you to take her to the library
>She check out a bunch of books about the human body and thoroughly read through all of them.
>She then asked you for a strange request
>That she wanted to go inside your body and "experience you"
>You obliged though uncertain if it would be alright.
>She didn't seem any more certain herself.
>The next day you felt a small weight in your chest
>And then you noticed that your slime waifu no longer had a core
>You asked and she said she was able to cut you open while you slept and she put her core next to your heart.
>She took off about half of her body, saying that now she wanted to explore you
>And so she did, entering your chest directly.
>She was thin enough so that it wasn't uncomfortable but you could still sort of feel her moving around.
>This was such a bizarre and unbelievable sensation
>And yet here it was.
>On her end she was able to move around and she saw fit, careful not to harm organs.
>Your hands, your feet...you could feel her just about everywhere
>When she finally exited she told you about how wonderful your body is, how wondrous it was to see you inhale and exhale, to see your brain do it's mundane actions..
>She even took some sperm which certainly explains that weird sensation you had down there awhile back
>You had sex with each other but it was different now.
>She seemed more knowledgeable in how to give you more pleasure
>And after that she wrapped you up in her slime and massaged your entire body carefully going on about "Oh yes, I have to take care of my husbands legs that do so much walking.." and other similar things.
>Every now and again she'd explore your body. But she never took her core out of your chest.
>You could feel it's subtle warmth in your chest which was kind of comforting.
>Your slime waifu wanted to keep it in to "be more connected with you" and insisted it wouldn't harm you.
>You conceded but then as weeks went on something was off..
>You weren't sure what was wrong.
>But then you noticed that your heart beat was..different.
>Not only that but you couldn't feel that slight warmth in your chest anymore.
>You were both worried so you want to the local Lich to find out what's going on.
>She put you under the knife and began her work, telling your slime waifu to wait outside
>She waited outside anxiously.
>But not for long and the normally calm and monotone Lich let out a "What?!" from inside the operation room
>A short moment later she came outside to the waiting area and urged your slime waifu inside and woke you up.
>The Lich seems at a total loss for words
>But both of you want to know whats wrong.
>"So, you put your core in his chest; next to heart even."
>The slime nods
>She closes her eyes and lets out a sigh.
>She points at your slime waifu
>"Your core has fused"
>She then points at you
>"With his heart."
>A long silence follows.
>You ask her to explain further but she shakes her head
>"I don't know. But your heart is now an organ I have never seen before. I have no idea if it'll be detrimental to your health or even if it'll change you as time goes on. It's all hearsay."
>You then notice that the Lich never sewed you up and express your surprise.
>"Yes yes.. But first...Let me test a little theory..I don't think I'll need to do anything.."
>She tells your slime waifu to close you up.
>She's doubtful she can be she tries
>And your chest closes up, seemingly on it's own.
>There's no trace of you being opened up to begin with either.
>Another long silence follows.
>She tells your waifu to keep a close eye on you and to immediately tell her should anything else unexpected happen.
>You and your waifu leave, not really sure what to say to each other
>All you know for sure is that you're no longer human but something else entirely.
>You really didn't know what to say to each other about this.
>She apologized to you and you forgave her of course but still the certainty of what was going to happen next bothered the both of you
>Still you were both curious about what she could do now
>So the two of experimented with this new found inhuman organ
>She can now enter and exit your body with much greater ease.
>Being able to experience what you can if she wishes to
>Being able to see what you see, hear what you hear...there seems to be no limit
>She had to exit you early though as it was overwhelming for her
>Time continued on and rumors about you and your wife spread
>Humans were horrified by it; especially ones in anti-monster areas who used it as fuel against monsters. "They don't just kidnap and rape now! They mutate your own organs to suit their twisted ends" would be an example of what they'd say.
>But even most monsters found the idea bizarre as well.
>A paladin found where you lived some days later and tried to kill you under orders.
>Your slime waifu now rarely leaved your body and she became more and more dependent on you
>You tried to run away but he cornered you even with your slime wife bolstering you ability
>He raised his sword and prepared to be done with it
>But in everyone's surprise his sword harmlessly bounced off of your skin.
>He ran away in fear of you.
>You're kind of afraid of of you as well to be fair.
>You had an idea you wanted to try out though
>You dived into a clean body of water
>And you were able to be in there comfortably.
>There was no fear or panic to go to the surface to get air.
>You had a feeling you could stay down here as long as you'd like actually.
>Just what were you becoming?
>Even though she really enjoyed being one with you in this unique way she was depressed over this.
>She exited your body one night. The first time in a long while.
>This has been the case for awhile but instead of being a blue color now she was entirely a reddish color. The color of blood to be exact.
>She started to sob. Apologizing for transforming you into something the world had not seen before; a hybrid of human and slime.
>You looked the same as ever on the outside. Your hair was all where it was before. Your skin felt about the same. But the inside of you was different.
>Your...core didn't beat like a human heart. Not really. And you didn't need to breathe.
>Your wife could also help you by being inside you. If a muscle was sore she could massage from the inside and you'd be as right as rain in little time or give you extra strength to carry what would normally be impossible for you alone.
>You kissed her though. Even though life has been anything but ordinary you still loved her.
>It's been awhile but you had sex with her the old fashioned way. That was something she appreciated very much
>The Order broke into your house and dragged you off, repelling your wife's attempts to free you, taking you into a carriage and quickly taking off, leaving her behind.
>They took you into the gallows, determined to put an end to you once and for all and perhaps out of fear of "infecting other humans"
>They took your head on the noose and hung you.
>Time passed. But as you suspected you weren't choking. You didn't need to really breathe after all. They were shocking beyond anything.
>Ultimately they let you off the noose but you were forbidden to enter any human town or city
>Monsters didn't know what to think of you but they weren't hostile.
>You were allowed to live in a city of Monster girls.
>It seems as though some other slime girls liked the idea of fusing their cores with their husbands
>But your waifu went out to tell your tale to them.
>As a warning of what could follow from doing such things.
>She became something famous among slimes.
>"The Human Explorer" or something you think you've heard they call her as a nickname.
>You yourself were both famous among slimes as a truly unique one-of-a-kind human and infamous amongst the vast majority of humans.
>But that doesn't matter so much to do you. Even though you were irrevocably changed you still enjoyed sex and quiet times with your wife and children away from the human societies.
>And that's just how you like it.