After taking some time to let the shock of the new situation sink in, Jason realises how impossible his current predicment is. He can feel Sarah's movements inside of his ass, a completely alien person controlling a very intimate part of his body.
After a few hours of the doctor preparing something in his lab, he asks the 3 to come in.
"So, Jason, you might be asking yourself, why did I put Sarah on your ass, isn't it?" Said the Doctor, expecting the young man's protest.
"Well, yeah, that like, what kind of made science are you running here doctor, is it some sick, twisted fantasy?" Said Jason, furious at the situation and angry at the doctor.
"Quite the opposite my young friend, I have saved Sarah's life with this procedure. You see, you all had the misfortune of entering my house just as one of my experiments had gone terribly wrong. As a safety measure, I have autolocks and vents installed to dissipate any of the gases generated by such experiments, and I was just testing the latest batch of a flesh molding substance. You and your friends entered the house just as it escaped containment, and in a sad twist of fate, you and your female friend had the misfortune of breathing in most of the aerolised substance when it was vented outside of the lab. When I found you 2 unconscious, you had fallen over head with you buttocks, absorbing it inside of yourself along with some of her organs." The Doctor explained, with a disconcerted look on his face, as he waits Jason to calm down a little.
"Wait, so you want me to believe that it was all our fault? That I killed Sarah and now have to carry her in my ass like a curse?" Continued Jason, still trying to swallow what was being said.
"No, my young man, if anyone is at fault in here, it is me. I just tried my best with my current tools, what remained of poor Sarah's body couldn't support life by itself, so I'm currently trying to create a new, fully functional body for her to be moved back into, here, take a look." The Doctor points towards a vat full of green liquid, containing what remains of Sarah's body, just the lower half of a torso with legs and barely connected arms.
"But you said you had changed my body to support her, why?" Asked Jason, still reluctant to accept the situation.
"Simple, what you got of her inside of your couldn't make for a living arrangement for either of you, I had to use my formula to make you 2 the most functional as possible before. Since I didn't want anyone of you to be shitting from your current mouths, for example, I've decided to change your digestive system to support a diet of protain with a wasteless system, allowing you to keep your body working without the needing to, you know, shit." The Doctor kept explaining, disconcerted from the words he was talking.
"Wait, I don't have to eat anymore?" Asked Jason, now more puzzled than angry.
"Yeah, like, I had come up with that method to make the work of growing bodies in those vats was a more seamless process." Said the Doctor, now getting excited about explaining his research.
"So, doctor, what other changes have you done to us 2?" Asked Jason, finally starting to accept accept the crazy situation.
"Well, other than making sure to replace the duplicate organs with workable counterparts, since, you know, Sarah is now your intestines too, I had changed your balls to generate estrogen too, to keep the testosterone from affecting Sarah too much in this debilitated state, also don't worry, any change from the estrogen can be undone once I remove Sarah from your body, also, in case you didn't realise it, your hips are way wider and your buttocks way larger because of Sarah, I've decided not to mess with the size because it easier to work with more material when the removal process is to be done." Explained the Doctor, happy that the young man calmed down and is now interested on his talk.
"Wait, if you have done that to help us, why did you alter Mike's mind?" Asked Jason, now suspicious of the whole thing again.
"Well, how can I say it, Mike was having a meltdown and wouldn't stop screaming during the whole procedure to save you two, so I had to use some of my mind altering technology to make him calm down, I will change him back once it is done too, it is just, it is easier to work when you don't have a buff man ragecrying on your lab." Said the Doctor again, highly disconcerted.
"OK, so how long will it take for you to fix it?" Asked Jason, hoping for a very short timespam.
"Well, from the materials I have to work with, probably a semester." Said the Doctor, knowing the desperate reaction he would get.
"A SEMESTER!" Screamed Jason, now panicking over the prospect of having to live this way for half a year.
"A SEMESTER!" Also screamed Sarah, finally entering the conversation. "I don't want to be an ass for 6 entire months." Cried Sarah.
"B-b-but don't worry, I have made sure to prepare the most things to let you live this period in the best way possible for your condition." The Doctor said, pointing out towards some papers and materials. "I have all of the feeding materials, a nice home and even some contacts to help deal with your personal relations while you wait for it to be fixed."
"Wait, really?" Said Sarah, now getting interested. "So, no work, study, anything?"
"Well, yeah, I wouldn't leave you all to your own devices. I can even allow visits, just, don't spread the stuff going in here around, I wouldn't want the attention, and neither do you." Said the Doctor, now in a more worried tone.
"Well, OK, it is a deal, what do you think Jason? It would be like a vacation for the both of us, and Mike can come any time." Said Sarah, kind of accepting the whole thing way too fast.
"Well, err...I dunno...but I think I can deal with it, if it is to save us both." Said Jason, finally being coerced into accepting the whole situation.
"OK, you can take those keys, they will give you access to the dispencery and your room, anything else you can ask me or one of my visiting assistents if they are here at the moment" Said the Doctor, now calmer, hoping that it goes down without a hitch.