"...A young woman by the name of Abby Wilson."
Abby Wilson? ... Woman? You couldn't believe your ears. Was he seriously saying that you were now a girl? This revelation hitting you like a ton of bricks.
"She was involved in the same car accident that you and your family were," Dr. Kerry continued somewhat uncomfortably, "along with her, uh... her twin sister, Clara. And sadly neither of them made it. The impact of the crash left them both brain dead. Making them ideal candidates for the procedure. Due to the rest of their body being perfectly fine."
"Oh my God... I'm... I'm a girl?" you finally shrieked. Your croaky voice now sounding rather strange indeed. As if you were only properly hearing it for the first time. "You've turned me into a girl?"
"I'm afraid so, Tim," the other doctor, Saunders replied. "Unfortunately it was our only option. Your brain was in perfect working order but your body was failing. The machines could only keep you alive for so long. That is why Dr. Kerry here suggested the transplant procedure in the first place. To save both you and Randall's lives."
"And... And is he okay?" you began, assuming that your best friend was in a similar state. Until that was you suddenly picked up on something that the balding doctor had said, in reference to the twins. 
"Wuh-wait... What did you mean "their body"?" Surely he'd meant to say "bodies". That being the plural after all.
What he then told you being even more of a shock. As if having your brain transplanted into some strange girls body, along with your best friend wasn't bad enough. Dr. Kerry uttering rather delicately, "Yes, body. You, uh... You see... Along with being twin sisters... Identical twin sisters, Abby and Clara (this presumably being the other ones name) were also conjoined. Two heads on one body. Otherwise known as dicephalic parapagus. It's an extremely rare condition and most twins born like this don't survive, but Abby and Clara seem to have beaten the odds. Or at least... they had."
Holy shit! was your natural reaction on hearing this. Learning that you and Randall were essentially stuck together as one. Meaning that he must also be here right now, on the very bed you were laying on. You just couldn't move your neck enough to see him (due to your current numbness). But in a way, you could kind of feel that someone was there. To the left of you. Now knowing of course that it was him. His head. Or rather, his brain inside Clara's head. Just as yours was in Abby. It being completely insane.
"Now I am aware how much of a shock this must be for you, Tim," Kerry continued, "And for Randall when he finally wakes up. But both Dr. Saunders and I have run numerous tests and it appears that physically you are both perfectly healthy. Abby and Clara were unique in that respect as well. There being no complications at al due to their condition. So you really have nothing to worry about on that front." Going on to tell you then, a little less confidently, "And as for the, uh... the other thing..." This presumably meaning the fact that you were now sharing the exact same body. The body that formally belonged to two girls. "...Well, given time, I'm sure you will both get used to your new predicament. Learning to live together as one. You are best friends after all."
Hardly finding this to be a comfort. In fact, you were hard pressed to find anything positive about this at all. Other than the fact you weren't dead. Knowing that you really should be grateful, but it was hard to feel anything other than the complete and utter shock of what he'd just told you. As if you were in the middle of some terrible dream. Having no idea how on earth the two of you were actually supposed to live like this. As essentially the same person. A freak. You and Randall having been best friends for going on 13 years, and at times were more like brothers. Sharing absolutely everything. The same likes, dislikes, taste in movies, taste in video games. The same sense of humor. But now you were going to be sharing a hell of a lot more than that. As bizarre and as freaky an idea as that still was. 
"Would you... Would you like to see?" Dr. Saunders once again interjected. Telling you that, "It might help to make things seem a little more... real."
Not being entirely sure that you did want this. Having absolutely no idea what to expect after all. Imagining that you must look like some sort of hideous mutant or something.  A girl with two heads presumably not being a pleasant sight. 
Despite this though, you found yourself letting out a weak little croak. "Please." Perhaps not wanting to, but you definitely needed to see. 
Watching then as the elderly, gray haired doctor picked up a small handheld mirror and brought it towards you. Feeling a growing sense of dread start to build within your stomach as he did. 
Oh fuck... What the hell am I now? What are we?!
Finding out soon enough as he brought the mirror in front of you and allowed you to see. Letting out an audible gasp as you caught sight of your reflection. Holy shit! The first thing that immediately struck you was how incredibly cute the strange woman who was staring back at you was. Her big blue eyes wide open. Her mouth aghast. Looking to be only a couple of years older than you were. Having a very youthful, pixie like face, along with short, jet black hair. Which was a little matted and disheveled. As was the rest of her appearance. Though surprisingly, for someone who'd just been through what she'd been through, she didn't appear all that bad. This definitely not being the monster you'd been expecting. Though it was still as freaky as shit. Realizing that this girl was now you. 
"Buh...Buh-but..." you stuttered. Her bottom lip quivering along in the mirror. Accompanied by a voice that was beginning to sound more and more feminine by the second. "...She looks just like a normal girl. Wuh-wuh... Where's Randall?" Having not yet caught sight of your best friend. His head not being attached directly to hers.
"He's... He's just down here," Saunders told you. Angling the mirror slightly towards your new neck, which again seemed perfectly normal. Attached as it was to a perfectly normal looking pair of shoulders.
Or so you thought. Quickly realizing that the collar of the ugly green gown you were clothed in was stretched rather wide, and instead of your left shoulder there was the start of another neck. And on top of that sat another, completely identical head. Same short, dark hair. Same pixie like face. Same everything. Only this head was tilted slightly to one side and clearly sleeping. It's lips and nose softly breathing in and out. Which absolutely knocked you for six. Exclaiming out loud, "No fucking way!" 
You really were twins, and you really were joined together. Even if did look kind of like a Hollywood special effect. 
"As you can see..." Dr. Kerry took it upon himself to explain as you continued to stare slack-jawed at this double reflection, "...there really is very little sign of any external damage to either cranium. In fact, we even managed to preserve both sister's hair using a rather new and highly advanced, non-evasive surgery technique that I patented myself." Sounding incredible proud of this fact. "To an outside observer, they wouldn't even know anything was amiss."
They might not, but you certainly did. Still trying desperately to get to grips with everything you were seeing.
At least until Saunders moved the mirror away and the cute brunette once again disappeared from view. Both of them.
"I know this all seems very strange and scary, Tim" Saunders said, "and I'm sorry for that, but at least you are still alive. Randall is still alive. And together you'll find a way to get through this. To live relatively normal lives. You just have to be strong. Because Randall is going to be just as confused and scared as you are."
You didn't doubt it. Being rather envious of him in fact. Asleep as he currently was, with no idea what  fate had befallen you both. 
"But for now, it's best if you get a little more rest. Then, once you're both awake, we can discuss the rest of the details. Talk about how your new situation is going to work going forward. As well as let you see the rest of your family. They were very worried about you." 
Suddenly thinking, Oh shit... My parents! ...David and Tabitha! What are they going to think when they see me like this? And not only them but your friends at school as well. Your teachers. Your neighbors. Anyone you'd ever known. Having no idea how you were going to go back to your old life looking as you did. Or even if you could.
You weren't about to get any of these questions answered at the moment either. Saunders hand moving towards your IV drip and fiddling a little with a nozzle as he told you that he was "just going to give you a little something to help you sleep". Finding yourself immediately drifting off as soon as whatever drugs he was pumping you with took effect. The last thought on your mind, before consciousness left you, being, Why us? Why did this have to happen to us?...