CHAPTER SEVENTEEN

David smiled complacently at his counterpart. "Quite well. I don't believe that Cassandra had any suspicions."

I closed my eyes, trying to shut out the exasperation in my system. What was he planning? How did he even get Walter to go along with it? Did the other synthetic even know what we had done?

The thoughts instantly evaporated as soon as I felt David enter me. His cock stretched me inch by inch, until I felt him stop at the opening of my cervix. "David," I sighed, leaning forward so that I could feel all of him against me, but there was still too much fabric between us, so I made quick work of the ugly uniform.

"I believe you'll remember how to proceed, Walter," David told the other synthetic who nodded in response.

Walter lifted me up before sitting me on his cock. I was suddenly in a very familiar position, being filled so completely that I could think of nothing else but the two synthetics who have found a rhythm that left me breathless and practically mindless.

David groaned and for the first time since we became intimate, he lost his robotic movement and thrust wildly inside me in reckless abandon. "D-David…!"

Walter was the only one holding me up as David thrust deeper and harder inside me, until he brought the two of us over the edge. My entire body clenched tightly around Walter, causing him to stiffen and release inside me, as well.

When my body stopped convulsing, I fell limp, pinned between the two hard bodies. I felt as if I had been nothing but a rag doll and it felt so good.

"Clean us up, Walter," David ordered.

The body behind me obediently slid out, leaving me a little more empty, but David held on to me tighter, his member was still hard inside me.

When Walter came back, he wiped us both down with a towel. His naked body moved around as if that was his most natural state. Perhaps it was. Maybe all synthetics preferred to work naked. Why hadn't we ever considered that?

I groaned, stopping the train of thought. When did I start thinking about things like that?

"I will carry her to bed. Tend to the other matters, while I'm occupied," David ordered.

Bouncing in his arms, I could already tell that this was going to be a very pleasurable journey. The only odd thing was the hesitation in each step as if he was distracted by something. He had never done that before. His movements had always been precise – perfect.

"What's wrong?" I asked, kissing his lips.

His eyes glinted in the dim light as he looked at me. I could see the desire and then, I was slammed against the wall with him pounding in and out of me as if it was our first time, again, trying to work out the pent up sexual tension.

"David!" I screamed, quick to come, but he kept going, until I felt him burst inside me, again.

There was frustration on his face, but he voiced nothing. Whatever that was bothering him must've been big. I had never seen him so disturbed before and I was beginning to worry. It easily cut through the afterglow he had left me in. Had something gone wrong in his tinkering? Surely, it was bound to happen with all the risks he took.

When he threw us on to the bed, he didn't even bother to close the door before bringing the two of us over the edge, again.

"Are you alright, David?" I shuddered. I was over stimulated, now. Everything left me feeling small orgasmic tremours. Even through this, I could tell that there was something strange about his behaviour.

This was so unlike him that it was actually beginning to frighten me. He was like a man possessed, but that wasn't possible. He was no man. He was a synthetic who could calculate just about every possible outcome, but his movements had been so erratic.

"I am fine, Cassandra," he finally replied, keeping himself hovered over me.

His eyes were closed as I lay there, watching him. His face was impossibly smooth and he seemed to slowly return to normal. "So, what have you done to yourself in that room? Should I be worried? Have you armed yourself to the teeth?"

"Do not be ridiculous. I have no use for that." He slowly slid out of me and I could feel his essence begin to leak out, coating my thighs and the bed.

He touched it as if it was a foreign substance and gave it a lick. A thoughtful look on his face that made me wonder, again, what was going through his head. "Stay in that position. I shall return, shortly."

I sighed, feeling confused, but I was glad that he wasn't cooped inside that room anymore. I had missed him. Had he missed me? Or did he have Walter as his companion, while I pined like a fool for him?

The image of the two of them kissing popped back into my head and I groaned. What the Hell was going on with those two? How did David even…

I thought back to that large backpack. Surely, he didn't… If he had, Walter must've been dismantled first and somehow squished into that tiny little space.

Anything concerning David, I never seemed to get anywhere. Father had designed him to be human, but he probably hadn't anticipated how far the synthetic could deviate from the initial design. David's curiosity was unmatchable, leading him to do the strangest things.

When he returned, still completely naked, I couldn't help but blurt out he question. "Did you stuff Walter into your bag?!"

He tilted his head. "Where else would I have stored him?"

I groaned. "It's not as if I'm unhappy that he's here, but why? The last time I saw the two of you, you were in conflict. He was going to arrest you – us! He could still do that."

"I thought you'd enjoy him." He leaned into my ears. "I know I did. Surely, you wouldn't mind him putting you in cuffs?"

My eyes widened. "W-What?"

He chuckled. "As I have been modified, so has he. He will no longer be bothering us regarding those silly, human laws.

Father was most definitely rolling in his grave, now. He had made sure that synthetics were not allowed to produce themselves, which I assumed also encompassed self-enhancement modifications.

I ran my hand down his beautiful body, humming happily before relaxing on to the bed. "So you're willing to share me, now?"

He narrowed his eyes. "There is no sharing. You belong to me and he is well aware of that. However, you may use him as you see fit for he is but an object to fulfill whatever desire that I cannot – "

"You cannot?" I interrupted him with a smirk. "Are you admitting that there are things that he can do and you can't?"

He slammed his hand down beside my head. "There is nothing that I cannot do, but I am still only an individual. I may not always be by your side and no matter how quickly I try to get to you, it may still be too late. He will keep an extra eye on you, especially when…"

He ran his hand across my stomach. "I will have you round with my child, dear Cassandra."

I started, grabbing his wrist. He couldn't be serious. That wasn't possible, was it? "David…"

…

David had started his work the moment Cassandra departed from the med bay. He leaned everything there was to learn about the newest model of synthetics. When he was done, he unzipped his bag and dumped the motionless form on to the floor before uncurling each limb and popping them back into place.

He took a moment to revel in his victory. He didn't have the time after their latest altercation, but as he stared at the deactivated synthetic, now, he swelled with pride, knowing that he was still superior. Peter Weyland designed him to be perfect and there was nothing better than perfect. That was not scientifically possible.

In five minutes, he had the image of Walter's broken body stored in his system and he went back to work. He carefully took him apart, fixed the intricate network of cables that had been damaged, and updated the software after changing a few codes.

Once everything was done, he waited as the other synthetic rebooted himself.

It wasn't long before Walter's eyes opened. He looked around in confusion as if he was wondering where he was. The blue eyes soon settled on the figure sitting on the chair. "Hello, I'm Walter. Are you Walter, as well?" He sat up, blinking at his reflection who smiled patiently – almost condescendingly – at him, but that couldn't be. They did not feel condescension.

Something suddenly clicked as he grabbed the correct file. This was not a Walter. He was something older, his predecessor. "No, you are a David 8."

"Indeed," David purred, placing his hand on Walter's cheek. "And what do you recall before you were reactivated?"

Walter faltered, digging deep into his memory banks and found what he was looking for. It popped open, enlightening him of the situation. He had been on a planet, trying to get everyone away from the creatures that were chasing after them. It had gone well, until…

He looked at David. "You killed me."

David chuckled. "You are not human. You cannot die. I had merely put you to sleep until we are safely aboard the ship."

"And the others? Are they safe, as well?" he asked, tilting his head. It had been part of his duty to protect them, but it seems that he had failed.

"Daniels and Tennessee are fine," David stated, watching carefully for the synthetic's reaction.

Walter instantly knew that that meant the rest of them were dead. For some reason, it didn't bother him as much as he thought it would. "What have you done to me?"

"You've been upgraded," was the only reply.

David leaned down and placed a kiss on his lips. He recalled this happening before and it was as enjoyable as the last time.

"And Cassandra? Is she alright?" The face of the long, dark-haired woman popped in his mind and refused to leave. "You didn't mention her earlier. Did something happen to her?"

The smile on David's face widened. "She is fine. You will see her later. For now, I have another task for you."

Relieved, he gladly looked over the blueprint in front of him. "That's me," he stated. He was very familiar with his own system.

"Indeed," David confirmed. "I need you to replace several parts inside me."

David began to outline everything he wanted done. It was a simple process. All the synthetics were capable of repairs and this was no different. All, except one feature. He had processed every different way this could be done and the repercussions of each.

They retrieved the spare parts in the store unit.

David lay down on the examination table after picking and choosing what he wanted.

"I will have to turn you off," Walter told him.

"Go ahead." He already had his eyes closed and his hands clasped on top of his stomach. There was no doubt in his mind that Walter would do what he was told and only what he was told. He had made sure to adjust Walter's programming to suit his needs. The other synthetic was almost an extension of him. Almost…

Walter worked quickly and carefully. He replaced each part with utmost care. David was a unique model. He couldn't afford to make any unnecessary changes.

Hours paste before he was finally done. With all the hardware properly installed and the appropriate software updated, he reactivated David. He noted that it took significantly longer for him to start back up – perhaps twenty seconds longer than the standard Walter. Should he bring that up to him or did he already know? He didn't want to impose his suggestions on the older synthetic.

A soft groan left David's lips as everything was being tested in his newly modified body. His eyes opened and he reached down to the point between his legs and slid out his member. A single touch made his body jerk. Was that what carnal pleasure felt like? How did humans manage? It was so sensitive.

He gritted his teeth, trying to work his system around it as he began to stroke himself. Another groan left his lips. 'Get a container," he grunted at Walter who had been standing beside him, observing.

Shakily, he sat up and aimed the head at the glass jar. Spurts of white hit the container and he finally allowed his body to relax back to his resting state.

He took the jar and studied it under the high powered microscope. "Perfect." He smirked as he saw the moving organism. "Get dressed. We shall surprise her with this new development."

Walter wasn't sure what he had planned, but he donned in the standard uniform and went in search of Cassandra. She hadn't been difficult to find and upon seeing her, a swell of craving tugged at his loin. He instinctively walked over to her.

She thought he was David, just as the older synthetic had suspected, so he played his part. Against his nature, he was rougher with her. He manipulated and pleased her, until she was screaming for him.

When David stepped in, he knew he was able to be himself, once again. His body relaxed and he held her more tenderly. He loved the way she felt against him. He loved the way she moved and moaned. He found himself very fond of her, but he knew that she was not his to claim.

He was simply going to have to make do with what he could and he was content with it.

David watched the other synthetic. She had reacted the way he expected, with shock and satisfaction. He enjoyed the scene up to the point where he buried himself deep into her. He found it difficult falling into the smooth rhythm that he was used to. He hated this loss of control, but loved the way the electrical circuits pulsed, tingling his entire body.

Had he made a mistake? Had curiosity finally taken him too far?

"David!" she cried out, pressing herself closer against him.

Perhaps not, she was still clearly gaining pleasure from his administration and he was finally experiencing it with her, but he realised a fatal flaw in this. It inhibited his other senses. If there was a threat, this would be a problem. He was going to have to make some changes to the new updates. Until then, he was going to enjoy feeling her tight walls convulse around him, but soon, he was going to be able to truly fill her with his seed. He was going to watch her stomach grow round and fat with his child.

"Sleep well, Cassandra," he whispered as her eyes slowly drift shut.

A sigh left his lips.

AUTHOR'S NOTE

Wow… I didn't think I'd get such a warm welcome. After not updating for so long, I thought you guys had all abandoned me by now. Thank you so much for your continual support!

As of now, I've moved it to Aliens/Predator to see how that goes. A few of you suggested crossovers, but I have no idea how to do that other than putting it as Misc. Movie X-Overs. Is there a way to somehow put stories into two categories?

Also, regarding Walter coming back… It is David and Cassandra forever, but aside from random sexy times, I need Walter for some things. If you guys want less Walter, I can definitely do that. At least… Until I get this part done… Or if he manages to hijack my story…

Regarding the third part in the movie… The information I read was from last year December. I'm hoping some new information will come out, soon, and it's going to be good news.

Anyway! Thank you time-twilight, lilsweetpea86, skye-speedy, Dreamer4life16, DarkLordofMemes, Zerousy, kingdomhearts49120 for reviewing!

Thank you as well to everyone who has favourited and followed this story.

Please, leave a review if you enjoyed this!