Stephan opened his eyes, confused about where he was. 

For a few days, the blonde beauty Elena had been feeding him small hearts from stray dogs and cats as he slowly recovered his strength. 

Then out of the blue, her roommate Amy came in with Elena and injected a sedative in his neck and knocked him out. 

Now, he was in what looked like an operating theatre as he woke up. 

"So... you're awake. Elena would be pleased that the operation was a success" the brunette in the glasses Amy said

Stephan tried to move, but found out that his wrists and ankles were bound to the table in metal restraints

Elena walked in, smiling at him. She was wearing unusual clothes, namely a skin tight black bodysuit, carrying a long rifle slung over a shoulder

"Is it done?" Elena asked

"Yes. The chip has been implanted successfully" Amy said

"Does it work?" Elena asked again

"Why don't you try?" Amy said, handing her a circlet that Elena put on her head like a tiara or a crown

She looked at Stephan and grinned

Suddenly, Stephan felt his penis rise to it's full length!

"Oh... you slut" Amy laughed

"That's the surest way to know, right?" Elena asked 

Elena looked at Stephan again, and his claws suddenly sprang out, looking sharp and deadly before retracting again

"What... what did you do to me?" Stephan asked in shock

"I've implanted a control chip directly to your brain. You will follow all my commands now" Elena said, as Amy released his metal bonds

Stephan looked in shock, unable to believe what he was hearing

Suddenly, he launched into an attack at Elena, but he wasn't in control of himself. 

It was as if his instincts had forced him to attack and Amy screamed as she ran and hid behind a metal table. 

But Elena stood still, defiantly facing his attacks

But all his blows stopped 5 inches from Elena's body as both his claws repeatedly tried to claw at her. 

"Good. It's a success" Elena said as Stephan stared in shock

"You... you made me attack you!" Stephan said

"Of course. How else to test my control over you. I can override your thoughts and use your instincts to act" she said

"But why? This is enslavement?" Stephan asked, helplessly

"Why? Because I want you to be my partner in the field. I've watched you in action and I think we will make the perfect partnership. However, I don't trust you. So, you will be my slave" she said

"That.. that's wrong!" Stephan protested

"Wrong? You were dead. So you no longer have rights. Now, you are my familiar... my hound" she said, before grabbing his still erect cock and pulling him along

"Now...you will be my partner in other ways too" she said as she pulled him by his cock out of the room, much to Amy's disgust. 

She knew that tonight she wouldn't be able to get any sleep from the noise. 

--

Weeks later, several miles out of Austin, Stephan was in Elena's team engaging in a battle with what looked like goblins and hobgoblins. 

Stephan had already recovered his bulk as well as his strength and physical abilities, as Elena had continuously fed him the hearts of the many forces they engaged. 

While Stephan could not grow his strength beyond the strongest and fastest creature's he's assimilated, he could at least reach the previous limits if he ate enough hearts. 

Elena had brought him out to hunt to recover, as well as work on their teamwork

She was an expert in sniping skills with her large rifle, but she also used her firearms in close combat pretty proficiently. 

It seemed that she had been a spy and assassin before, sent to America to do the bidding of her Russian superiors. But when the many races attacked, she teamed up with the survivors in Austin and made herself useful

She was now in the special unit of the military superhuman force of Austin, acting as their sniper and scout.

As she expected, Stephan was the perfect partner and shield for her, even in close combat

He would tear into the enemies, drawing all the attention, while she fired her shotgun from behind him.

"How is it?" Amy asked over the communication headset

"He's back to full strength. He's an excellent tank" she said in reply

While Elena wore her skintight black bodysuit, with multiple firearms strapped all over her body, Stephan was practically nude!

Elena dressed him in a black mask hiding his eyes, black leather bondage straps, with his cock hanging out in the open. 

Stephan could not protest or say anything once she decided, as he could not disobey with anything she commanded mentally

As Stephan fought, his whole body became covered in blood and gore anyway, so it was hard to see him as anything but a beast

They rested after killing the goblins with Elena seated on a piece of rubble

"Come here!" she said as Stephan quietly obeyed. He knew what she wanted, but was unable to stop her

"Milk!" she said, as she wiped his cock with a wet wipe

His penis started secreting a white milk like substance as she took him into her mouth and quenched her thirst. 

His body could generate things other creatures could if he had similar organs. He certainly ate many animals that produced milk in the staging ground realm. 

As for the white substance, it was uncertain if it was really milk or perhaps sperm she was drinking. But it certainly tasted like warm unpasteurized milk direct from a cow or goat. 

Amy had analyzed it and found that the substance was close to that of milk, but was unable to say what creature it most resembled as the DNA analyses only showed that it came from Stephan. 

Stephan's body was experimented on over the weeks, with Amy and Elena figuring out things about him that even Stephan himself didn't know. Elena certainly discovered that his penis could move like an extra limb and had even gotten him to do tricks for her with it!

At home, she regularly got him to use his penis like an elephant's trunk, to feed her food. Of course this disgusted Amy. 

When she was sated with his milk, she opened a specially designed patch on her skinsuit, exposing her pussy. 

She climbed onto his back and mentally gave him a command as she hugged his neck and using a specially designed strap, her arms attached together around his neck. 

As his penis could expand to just over 10 inches, and could be controlled like a limb, his penis turned downwards, tucking between his legs, into a specially designed leather pocket under his testicles, coming out of it in the other end and tightly pressed between his butt cheeks

There was still several inches left over and it entered into Elena's pussy, as Stephan started to run

He could run at superhuman speeds at over 80 miles an hour like a cheetah. 

There was no way Elena could match his running speed, so this was her way of travelling as he carried her all the way back to Austin. 

Although Stephan had become her slave, she was never cruel to him or treated badly. 

However, she did treat him like an object for her own desire. 

His penis was too long and would injure her cervix if the whole thing entered her, but she took him as deeply as she could regularly during sex. 

Now only was he her partner in the field, he was also her partner in bed. 

--

"So this is your new partner? Your.. wildman?" Jura asked

"Yes sir! I've been training and field testing him the past few weeks" Elena said

"This is the body we picked up?" Desmond, the large man asked her

"Uh huh. Why?" Elena asked

"Why... why is he naked?" Jura asked, seeing his penis hanging out in the open.

While flaccid, Stephan's cock hung just under 5 inches. It's only when it's erect does it stretch to the full 10 inches, more than double what it was now.

"He's not naked. He's wearing the straps" Elena said

"It's not appropriate, Elena. We're seeing the general for a briefing" Jura said

Elena sighed and with a mental command, Stephan's cock moved by itself and tucked itself in the pocket between his legs. But being flaccid, it didn't come out at the other side and stayed hidden in the pocket. 

"Oooh!" Desmond flinched, seeing Stephan's flaccid dick press his testicles down between his legs, subconsciously blocking his crotch with his battle axe. 

General Nathanial Goodwin or the United States Army walked in as Jura, Desmond, Elena and a few others saluted. 

"At ease. Hmm... a new one. Why is he dressed like that?" he asked

"That's not a new member. He...it... is Elena's hound" Captain Jura of the Austin Superhuman Force  explained

"What do you mean hound?" General Goodwin asked

"He's... it's been implanted with Amy's new control chip, the one she designed for monsters" Jura explained

"Isn't he a human? Even without the mask I can tell he looks completely human" General Goodwin asked

"It is a reanimated corpse General. If you remember the battle with the orcs. This is the very same wildman. We discovered it the next day, withered and dead in a dumpster as we tracked my bullet" Elena lied

"Really? The same wildman? Are you sure?" General Goodwin asked

"Yes sir! I was there when we discovered the withered body" Captain Jura said

"Is that problem still unsolved? Many of the women have been afraid to go out at night. Haven't you found any clues?" General Goodwin asked

"No sir! It's still a mystery sir! In fact, this hound was the first male we found among the withered corpses. Even males are unsafe now" Captain Jura said

Stephan was alarmed, but could not say anything. He was certain this was the work of the mandingos. Like Natalie, they needed to fuck daily and absorb lifeforce. He never thought about what would happen if they are let loose to a civilian population. 

But now, it's too late and he couldn't do anything about it. But if he was the only male withered corpse, and he knew he was anally raped by Luke, that means only the mandingos have been absorbing lifeforces by fucking women. It means that Natalie had been subsisting by fucking the mandingos and sharing their absorbed lifeforce. 

He didn't know if that made him feel better or not, as it meant that the mandingos were fucking her for her sustenance. 

"Very well. He... it doesn't talk?" the General asked curiously as he looked at Stephan up and down carefully

"No sir! Not unless I mentally tell him what to say" Elena lied, controlling Stephan with her controller not to say a thing. 

"A shame. He might know what is going on, or who attacked him" the General said, walking to the front of the room

"I know what's going on! I know the culprits" Stephan screamed in his head, but stood still without even twitching as Elena kept him in control

"Now, our next mission is to take over Houston. Many weeks ago, we were notified by survivors that Houston was freed from a powerful force. 

But when we sent in our rescue team, they were decimated by another enemy force. 

Based on the video from the salvaged recordings, Houston has been taken over by what looks like orcs. But besides being normal orcs, they are faster and more powerful" the General said

Stephan looked at the screen and was shocked that they were indeed not normal orcs. In fact, they looked like vampire orcs!

His guess was that the vampires had conquered the orcs, either in another realm, or on earth and like the elves, had made them into another force for the vampire forces.