Adding to the pack

"No, you can't be barking, Maximus, we're not even supposed to be out here," Mercedes said to her adorable little chihuahua, who was yipping at something for the third time on their clandestine walk. After days of being cooped up in her home with Maximus, they were both going stir crazy. Her small backyard wasn't enough for her little prince and the air of cloistered fear that had been building around her had finally gotten to be too much. Despite what the news, radio, and social media said, the ones that were still normal at least, she just had to get out, even if just for a few minutes.

She was so eager she didn't even change like she normally would; the pair of yoga pants and cut off top she was already wearing was enough. Her top showed a lot of skin, not to mention the deep fold of cleavage created by her heavy boobs, but there wasn't going to be anyone else out anyways. Anyone who hadn't given in by this point was well ensconced in their homes and wasn't likely to be doing the same thing she was. Only taking the time to attach a leash to Maximus, tie her long hair back, and grab her bag, Mercedes gladly stepped out of her house and into the fresh, free air.

Maximus was just as excited as her to get out, pausing to sniff at everything he could find. Mercedes made sure to keep them to just the nearby blocks, close enough to home to hurry back if they needed to. She had seen people online talking about the Contagion and definitely had no desire to join them. The lure of perfect bodies overflowing with curves and sex held no attraction for her, given how much her already large breasts drew attention to her and caused her pain. She had talked to her friends too, both the ones that had caved and the ones who stayed themselves. The ones who had stayed safe from the Contagion shared her concerns and anxiety, but the ones who posted about their new bodies and how much sex they were having were much worse. The ones that really concerned her were the friends that hadn't responded to her messages though, even after almost a week. She had seen enough posts and articles online to know what must have happened to them.

Broken out of her thoughts by Maximus barking and growling, she looked to her little man to see him crouching and trying to be as ferocious as possible. She still couldn't tell what he was so aggravated about, but she couldn't have him barking and drawing attention to them. Reaching down, she scooped him up in her arms, realizing he was trembling too.

"What's wrong, mister Maximus? I thought you wanted to take a walk too. We're lucky it's so quiet out and we can. If there was anyone else around, we'd have to go home. But maybe you want to go home anyways?" Maximus' trembling was augmented with little whimpers and Mercedes had to smile. Despite the bad rap chihuahuas got, her little prince was a scaredy cat at heart. She definitely didn't mind though, it made cuddling him so much more fun.

"Okay, let's go then. I guess you're right, having no one else around is kind of creepy." Mercedes started to turn around to head for home, but Maximus suddenly panicked, thrashing wildly in her arms. His little claws scratched frantically at her exposed skin, leaving long red marks and making her drop him and her bag. The tiny dog hit the ground and immediately bolted, sprinting off as fast as his little legs could carry him, leash clattering behind him.

"Ahh! Maximus, stop! Come back!! You can't be running off like this, we have to get back inside!! What's got you so spook--!" The curvy woman froze in place, some sixth sense alerting her to something behind her. Something huge, she could see its shadow completely consuming hers on the ground in front of her. It's hot and heavy breaths disturbed the hair on the back of her head, the moist blasts of air making her shudder with fear. After days of reading and hearing about the Contagion, she knew whatever was behind her was dangerous in the ****. 'Flee,' some part of her mind thought, 'run now. Flee, hide, escape.' Her pulse pounded in her chest and throat, legs tensing to sprint and avoid her fate. She was just at the point of bolting when a deep, savage growl enveloped her from behind.

"Good....body....breed...." The untamed words washed over her like a blanket of fear, only heightening her flight response. "...more...mate...." The promise in the words finally pushed her over the edge and Mercedes bolted, her chest heaving with fear. The sounds of her frantic footfalls resounded in the empty street, as did the rapid steps of whatever was behind her. They were faster too, quickly closing the distance until it was right behind her. **** at least to see whatever creature was tormenting her, Mercedes stopped and turned, only to see a massive claw coming towards her head. She heard the thing cry out 'MINE' before the paw hit her and she was knocked ****.

The voluptuous Mercedes woke with a start to the sound of pained screaming. Bolting up, she instantly found herself restrained, arms spread wide against a wall and keeping her in place. Her eyes flicked over her body, still covered by her clothes, before easily finding the source of the screaming.

There, not ten feet in front of her, was a monster, no doubt the owner of the enormous paw that had knocked her out. The werewolf, for that was the only thing the mutant mix of wolf, man, and caged beast could be called, was every bit as terrifying as its hand had been. If it had been upright, it would have been a full two heads taller than her, covered in coarse black fur, long ears, a long snout full of flashing, white teeth, and eyes full of baleful, malicious intelligence.

That was only if it was upright though. As it was, the beast was instead crouched over another woman, another blonde, his hips moving with singular obvious purpose. The girl beneath it screamed with every thrust, surely taking what was a cock just as beastly and monstrous as its owner. Unable to do anything but watch, Mercedes noticed two things about the woman: first, she was shorter than she initially seemed, the difference made more **** by the perceived massiveness of her violator. She couldn't have been more than five feet tall and was doubtlessly having her pussy stretched to its absolute limit. The second and normally more surprising of the two things she notices was the girl's long, pointed, elven ears. In truth though, the poor woman's **** at the paws of the werewolf was the true horror.

As if in sync with Mercedes' thoughts, the monster howled and she saw his muscles tense. The elf girl's screams reached a crescendo, then tapered off into terrified sobbing and whimpering. The werewolf stayed in place behind her, not moving except for the panting breaths he was taking. Mercedes wondered why he wasn't moving, but didn't question it. She didn't want the monster to keep **** the poor woman, or worse, turn its attention towards her. She was all too aware that she was very much trapped in place. She didn't even dare try to escape for fear that she would be noticed.

Her concentration was drawn back to the wolf man as he grabbed the elf's hips and pulled her off him. Her agonized screech hurt Mercedes' ears and confused her, until she got a good look at the werewolf's enormous shaft. It was just as canine as the rest of him and inhumanly long, with a thick, still present knot towards the base. The blonde put together what must have happened with frightening ease: the werewolf had been knotted inside the girl and had forcefully pulled out, stretching her overtaxed birth canal further in the process. She shuddered at the thought and considered it a miracle the girl hadn't passed out from the pain.

There she was, still face down on the floor and limp like a sack of potatoes. Though the enormous mass of the werewolf obscured some of her, Mercedes could still see the girl's gaping pussy. White cum trickled out of her, pooling on the floor beneath her pelvis. The elf woman continued to lay there, twitching occasionally, her breathing gradually becoming less erratic. Mercedes was just thinking that her steady breaths almost sounded peaceful when the girl suddenly jerked. She shook her head, whispering words to herself that the captured blonde couldn't make out. The murmuring didn't last long though, quickly being replaced by whimpers of raw need.

Mercedes couldn't believe that the woman she had watched get **** by the towering wolf was the same one writhing, panting, and mewling with unmistakable lust. Instead of trying to fight or protect herself, the girl was gasping and squirming with arousal in front of the very same creature that had just violated her. The true surprise, however, came when the tiny elf girl seemed to calm a little and looked back at the werewolf. Mercedes couldn't fully see the expression on her face, but it looked ****. The way the girl raised her ass and pushed it up and back towards the beast was unmistakable though.

"Please....please!!!" she begged, her whimpering louder and clear to hear. Her butt remained thrust towards the wolf, legs spread and the cleft between them glistening. Fresh arousal ran down her thighs, thighs that Mercedes realized had more meat on them than before. All the rumors and reports she had read in the last week flooded her memory, words of bodies transformed and overflowing with sexuality, often helpless before their needs spinning in her head. She'd hoped she would have never had the chance to see if the stories were true, but watching the girl's rear steadily widen ruined those aspirations. Even knowing what she was seeing though, she couldn't pull her eyes away.

The werewolf thrust back into the twice-infected girl with a growl, earning him a suspiciously canine cry from her. He set to thrusting while she yipped beneath him, her lithe body becoming much more bountiful with increasing speed. Voluptuous curves flowed along her body, giving her a plush softness that jiggled as she was fucked. Small breasts inflated into enormous and puffy teardrops that promised to fill with an abundance of milk. Little bits of fur sprouted along her body and a fluffy tail abruptly grew from the base of her spine, wagging madly and perfectly matching the long, floppy ears that replaced her elven ones. Mercedes watched the last of the girl cave to her new instincts and start to push her ass back to meet her mate's in time with his thrusts, all the while wondering what was going to happen to her.

Her eyes broke away from the whimpering dog girl, only to realize the werewolf wasn't looking at the former elf woman, he was staring directly at her. A thrill of fear electrified her spine at his gaze and she tried to make herself as small as possible. The beast gave some feral approximation of a grin and roared again as he came. The girl beneath the monster cried out too, her own climax brought on by the flood of semen inside her and her mate's once again swelling knot. Mercedes was relieved and overjoyed that the wolf man didn't **** his way out of her, but not for any sympathetic reasons. She knew that as long as the wolf was inside the transformed girl, he couldn't get to her and she was safe for a minute longer. The woman clearly didn't mind either, her whimpering and panting tinged with satisfaction.

Eventually though, the towering werewolf pulled his barely deflated cock free from his mate, making the dog girl cry with disappointment and Mercedes sob with desperation. The monster stalked straight towards her, cock hard, throbbing, and dripping. Her frantic pleading did nothing, same as her struggling to free herself or escape. The musk filled her nose, so much more potent now that its source was closer to her. She tried not to look, but couldn't help it as her eyes watched that massive phallus. She cried harder as her tight pants were stripped from her body, exposing her entirely from the waist down. Salty tears blurred her vision, but not enough to hide the sight of the werewolf lining himself up with her. His cock looked so utterly massive compared to her body and it felt like a trunk when pressed against her core. Her sobs were the only sound in the room and her eyes lurched up to the face of the beast. It snarled with feral desire and undeniable intelligence. It, he, knew what he was doing. Knew what she was feeling. He loved it.

He thrust forward, filling her entirely with every millimeter of his dick.

Her scream was even more intense than the one that had woken her.