Mel stared at the body in front of him for a long time.  He traced his hands through the fur, felt the warmth and sniffed the scent-glands and gently fingered over the nose and mouth with his apelike hairless fingers. 
He couldn't believe it was finally coming true. 

The technician gestured him over the chair beside it, "I'm sorry, sir, we have a schedule to keep and the process takes some time." gently helping the human into the cross between a table and chair and some horrific nightmare bondage contraption.  The technician was tall and lean with draconic features and small breasts but spoke with a male voice.  It, he'd asked and the technician preferred the title, smiled soothingly as heavy bands and cuffs were locked over his body. 

The head and neck and shoulders were specially secured, heavy bands and bumpers around the head added significantly to an already increasing feeling of claustrophobia as he lay nude in the cool, sterile air. 

The technician, sensing agitation, gently pressed an orinasal mask to his face. "Relax, sir, and please breathe deeply.  Agitation will make the process much more difficult." And so he did.  The voice was gentle but tapped into something in him that made it impossible to disobey.  The sweet, mild scent of nitrous oxide also didn't hurt and when the technician was satisfied it gave a small nod. 

And the needles drove deep into his neck and skull. 

He would swear later that he could feel the filaments seeping between his brain cells but from that moment he felt he was living in two bodies. 
His human one. 

And the mechanical, vixen, one to his left.  He and she.  Two sets of eyes, ears, other sensory organs slowly mapping onto each other.  The neural link between the mechanical, robotic brain that his organic one was being patterned onto. 

The movements slowly synched up, the vision growing clearer and more acute than the human side.  The same happened again for hearing, then scent and then touch.  The process was nearing completion now as he felt his memories copy over; simultaneously writing to both brains at once now through the link. 

Both brains shuddered at what must happen next. 

The technician had been reading the monitors and nodded gently, giving that same soothing smile as he stroked the human's head.  "Almost time for the transfer to finish.  Know that you will live on forever now..." 

The human and vixen spoke as one quite suddenly, hesitantly at first but with growing confidence.  "We... would like... to do this ourselves."  The human's heartrate was up and he was sweating; both brains knew what must happen.  An identity could only exist in one place at one time and the outcome of neural transfers was always the termination of the organic body after the link was severed. 

Well, almost always. 

"You want to terminate your own organic shell?" 

They nodded.  "Preserve the link, we... we're scared."  both bodies shivered in unison and the technician slowly nodded.  "I will be he..."
 
"Privacy, please..." They asked at once.  It nodded softly, still finding the dual minds a little disconcerting despite going through the process itself.
 
It nodded solemnly and unclamped the synthetic vixen's restraints before standing up and exiting the room "Very well...  You have twenty minutes to say your goodbyes.  The organic shell cannot last longer than that under connection anyways." 

The vixen nodded; the human tried, and the technician left. 

She slowly walked over to him, trailing the tethers that connected their nervous systems.  They could feel the emotional matrixes; a war of biology and simulated biology.  His body knew it was going to die.  She knew she was going to be killing herself.  She also knew she would take him one last time as she did. 

She pulled a biohazard bag from beside his restrained body; straddling his legs as she did so.  She was wet before his erect tip touched her lips and the fire of hot shaft and hot tunnel around it nearly overwhelmed them both. 
This would be short.  It had to be. 

"I love you."  The mouths spoke it in unison from one mind connected by wires and filaments between two bodies.  It was an odd thing to say but it was true. 

And both bodies took a deep, reflexive breath as she took the mask off his face and pulled the bag over it; simultaneously lowering herself quickly onto his shaft. 

They both exhaled simultaneously and for the next thirty seconds their breathing was in synch and she rode his shaft.  She slowed exquisitely; being the same being the female synth was able to perfectly calibrate for the human male suffocating below her; gasping his life's last breath into the bag as she drew out his final moments. 

The riding grew more intense after that.  His plummeting blood oxygen level felt through both bodies.  Two minutes in they felt like they couldn't hold it any more and the synthetic vixen had her first orgasm; simulated juices covering the male's crotch as his own last ejaculation filled her. 

She didn't stop, though, drawing out his orgasm to try and prolong the endorphin rush, seeing his vision darken and go spotty, holding off the panic of his body's death.  Her synthetic mind welcomed these sensations and memories; the last of a dying brain, like refugees from a burning city. 

His body spasmed in its death throes as the vision went black.  The consciousness fading and then slowly winking out but she did not sever the link; only holding the bag over his face as the neural activity died out and the last panicked impulses of a dying brain fled over the link to nestle in her perfect, immortal, electronic mind. 

And she cried. 

She was still holding the bag over his lifeless head as the technician entered and gently stroked the back of her head. 

"Are you scared?" It asked her, softly, as it coaxed her to remove the link cables.  She followed its instructions numbly but did not respond; tears drying on her cheeks. 

She had dismounted him and was stroking the body that had been hers for fifty years; now lifeless beside her, dribbles of seed and other fluids issuing from it as the technician disconnected the interface. 

"No..."  She responded at length.  "No I'm not scared.  Not anymore."  Smiling sadly up at him.  "I've died, now, and I understand.  I'm sad.  But I'm not scared."  And gave the body's brow a gentle kiss through the plastic before making her way out the laboratory doors.

She would live forever; or as forever as one could, but now more fully understood the meaning of that life and of those around her.