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Animal Passion

Summary:

Living with someone you have feelings for can be rough. Dog Man and Petey know that firsthand. Luckily, it’s mostly been smooth sailing! Until a bump in the road appears in the form of Dog Man getting his period. And as hard as Dog Man tries to hide it, Petey is quick to notice the changes around him. So what happens when the two are alone during the height of all this? Two very simple words: animal passion.

AKA: A spicy little fic where Dog Man and Petey are driven to their base animal instincts.

Notes:

Hello lovelies! I'm here to present a fic I finished back in June (June 10th, to be exact) but never posted to AO3. I did edit it a wee bit. Mostly to make the paragraphs a bit longer, but it's basically the same! So, I hope you lovelies enjoy this fic!

Comments, kudos, bookmarks, and constructive criticism are always welcome! But, of course, not required 🫶🏻

Work Text:

Oh, how time flies by! It goes by quicker than you realize, and before you know it, it's already been a month or longer. Though sometimes time likes to play dirty and feel painfully slow. Like during moments of extreme dread or stress. Dog Man and Petey experienced both of these extremes during their month of cohabitation. A temporary arrangement formed from an unfortunate incident resulting in Petey's lab being destroyed.

 

For Li'l Petey, it’s a dream come true! He finally had both his parents under the same roof, and they could spend more time together as a family.

 

For the two adults, however, it's been quite awkward. The truth is that they both have feelings for each other. And now that they're both in the same house, it's been difficult keeping that to themselves. Luckily for them, it's mostly been smooth sailing as they navigate through this new arrangement. But we all know that eventually bumps in the road will happen. Did they have to happen so fast though?


‘What's that new smell on Dog Man?’ Petey thought to himself as his finger swirled the rim of his coffee cup. The feline couldn't help but notice the subtle but distinct change in smell coming from Dog Man. I mean, the hybrid smells terrible all the time, but this is… different. In fact, Petey likes this new smell coming from Dog Man. It mixes well the natural aroma that lies under the stench of garbage and other disgusting things Dog Man gets into during his day-to-day life.

 

Petey just wishes he could understand what he's smelling. Suddenly, a loud, sharp bark pulled him out of his thoughts. Petey's eyes go wide and his fur fluffs up in startled surprise.

 

“Wh-what?!” Petey yelped, looking at the hybrid who's standing before the kitchen sink. The two have just finished breakfast, and Dog Man is cleaning up the dishes, a pink apron adorning his body along with his normal police uniform. Yes, you read that right: Dog Man and Petey are alone in the house. Just the other day, the two parents said their goodbyes to Li'l Petey and 80-HD as they headed for a weeklong field trip with Flippy and the tadpoles. This means that for an entire week, the two are all alone.

 

“Is everything okay?” Dog Man signs gently, a soft whine of emphasis leaving his throat.

 

“Yeah, of course I’m fine!” Petey blurts out in defense. “Why?”

 

“You were staring at me.” Petey's face goes red hot as he reads the sign, his tail swishing behind his back.

 

“I was not! I was thinking and looking in your general direction. There's a difference, you dumb mutt.” Petey huffs, crossing his arms and looking away from the hybrid. “Just keep doing the stupid dishes.” Dog Man, though not convinced, goes back to the dishes anyway. He needs something to distract him from the rampant thoughts plaguing his mind. His period. It's about to start. He knows it. Most likely tonight or tomorrow, but it's coming. And that terrifies Dog Man. How will he hide it from Petey? Can he hide it from Petey? Or will it just be a fruitless endeavor?

 

His symptoms are not mild, so masking them won't be easy. The pain, the blood, the horniness. Good Lord, could he hide his horniness? Especially with his crush here in his house? And if he couldn't, what would Petey think of him? Likely would just see him as a freak and move himself out of the house and get LP and 80-HD out as soon as they return from their trip. The thought broke Dog Man's heart. So, come hell or high water, he'll keep his period a secret. If only it were that easy.


Just as Dog Man predicted, his period came that night, “blessing” his perfectly white briefs with its bloody glory. Thank the heavens Petey has his own room and stayed there all night. Now all he has to do is keep everything on the down low, and he'll be golden! But the next morning, he couldn't help but notice Petey acting… differently. He stole more glances, his eyes lingered far too long, and any time the two were close together, Dog Man swore Petey was taking whiffs of him.

 

The most striking sign, however, was the look in Petey's eyes. The way his pupils dilated, making him look like a wild animal. Like his base instincts were trying to take over his entire being. That coupled with the way his tail swished and him stealing whiffs and glances told Dog Man that something was going on. But he dared not bring it up. Plus, Dog Man would be lying if he said it didn't turn him on. He's never been one to hide his animal nature, even now that he has a human body. So seeing Petey revert to that base, even if just for a split second, scratched a special spot in Dog Man's brain.

 

Which proves dangerous towards his goal of hiding his period from Petey. Hopefully, this strangeness from the feline will die down soon.


‘Fuck! Why must these periods be so damn painful?’ Dog Man thinks to himself, clutching his stomach as he lies down on his purple doggy bed. The second day of his period is always the worst, and no matter how many period cycles he's been through, he'll never understand why they have to cause such painful cramps. At least he survived yesterday and this morning and didn't get caught by Petey. No matter how many times he nearly crumpled from pain. And no matter how badly he wanted to jump the feline’s bones.

 

‘Whatever. Just get some rest. It'll help with the pain.’ Dog Man concludes with a soft huff as his eyes flutter shut. This attempt proves unsuccessful, however, as a wave of unrelenting cramps attacks his abdomen. Getting his uterus removed sounds pretty good right now. Too bad his baby fever is too strong to let him do so. He couldn't go on like this, not without at least going downstairs and getting something to ease the pain. Dog Man just prays that Petey stays in his bedroom as he does so.

 

The descent downstairs is successful, though a bit painful. Petey is nowhere to be found, and when he gets to the bathroom, he's fully stocked on his pain relieving leaves. They may taste terrible, but they work better than any pill ever has, albeit a bit slow. With a deep breath, Dog Man chews the leaf, scrunching his face at the bitter taste. Once properly chewed, he swallows the leaf and turns on the faucet to lap at the water. It's not much, but it helps to rid his tongue of the awful taste plaguing his mouth.

 

‘There. Now we can get some sleep.’ Dog Man breathes a sigh of relief at the thought as he turns the faucet off and exits the bathroom. The trip upstairs is more pleasant, not in pain level, but in comfort. Though this blissful silence left him unguarded from what lurked behind him. Entering the attic once again, Dog Man stretched out his tired, aching body. It was his day off, yet he still ached as if he’d just worked a full week all in one day. Hopefully, tomorrow will be a better day. So he trudged forward to his doggy bed, turned around, and went to sit back down when a sight made him yip in surprise and his ears shoot straight up.

 

Standing at the entrance of the attic is Petey. Watching, no, studying him. Like he’s trying to memorize the hybrid’s every move. Like a predator stalking their prey. Dog Man freezes at this, his body tensing up at the sight. What the hell is Petey doing?

 

“P-Petey? What-what are you doing here?” Dog Man signs slowly, his heart rate gradually picking up speed. How can such a confusing, tense situation be so fucking hot? But Petey doesn’t speak. Instead, he slowly makes his way into the attic and towards the still frozen canine. Dog Man didn’t move at this. He couldn’t move as his eyes intently watched Petey’s every stalking step. He can feel his heartbeat sync with the feline’s movement, and a satisfying tingle runs up his spine. Goosebumps prick his skin at the anticipation of it all.

 

Then he felt Petey’s nose brush against his stitched neck and take a deep whiff.

 

“What is that smell on you?” Petey finally asks, his voice low and cracking as his tail swishes behind him in fluid, calculated movements. “And what were you doing in the bathroom?”

 

“Smell?” Dog Man slowly signed in confused response. “Wait, how did you know I was in the bathroom?”

 

“You smell different. For a few days now, you’ve smelt different. And I watched you. I was going to say something when you came downstairs, but then you went straight to the bathroom, and when you came out, you went straight for the stairs.”

 

‘What?! How did I miss him down there?!’ The hybrid’s mind ran rampant, trying to figure out how he had missed Petey’s presence.

 

“You never use the bathroom. Not unless I force you to,” Petey mumbles, mostly to himself. “So what’s changed?” The tabby adds on, taking in another whiff of Dog Man’s neck. Oh, how that smell made Petey want to grab the hybrid and hold him close.

 

“I-I was… THIRSTY! Yes, quite thirsty!” Dog Man abruptly signs, letting out an awkward, huffy chuckle. That’s believable enough, right?

 

“Thirsty? So you drank from the tap instead of the toilet?” Petey asks with suspicion lining his tone. “I thought the toilet water was the best in the house.” Dog Man whines gently at the rebuttal, remembering their conversation on the second day they lived together. His everyday instincts were truly coming to bite him in the ass. But he doesn’t have time to come up with another excuse as a wave of painful cramps attacks his abdomen, causing him to quickly grip his stomach.

 

“He-hey! What’s wrong?!” Petey exclaims, moving in front of Dog Man and kneeling before his soft, round stomach. But just as he did, the feline is hit with a strong cloud of that new scent. And that makes him pause.

 

‘The smell is coming from his stomach?’ Petey asks himself as he ever so gently touches the bottom part of Dog Man's squishy stomach with his nose and sniffs. ‘No… it's coming from further down.’ Petey looks up at Dog Man, whose face is flushed with heat. His ears are standing all the way up and his eyes are wide like saucers. That mix of fear and anticipation makes the cat pause again. “Do you want me to stop?”

 

It’s Dog Man's turn to pause as the question enters his brain. The fearful side of him is saying yes. Stop before you see something you can't unsee. But the horny side of him is saying no. Don't stop till you get your fill. And in this battle of logic and horniness, Dog Man's horniness won.

 

“No. Just… don't judge me.” He finally signs as he looks away from Petey's potential reaction. Petey looks confused by the request, but is quickly beckoned by that alluring smell. So he follows his nose downward till he reaches Dog Man's crotch. Then that ever inviting smell really hits Petey. Full force.

 

‘It's coming from his crotch!’ Petey's mind exclaimed, his pupils dilating at the revelation. His instincts tell him to investigate further. His paws reach up, ghosting over Dog Man's hips as his eyes look up to gain permission to continue. The simple, yet affirming nod from the hybrid nearly made his logical side jump out the window. His paws then worked quickly to remove the pants and briefs from Dog Man. And once they're off his hips, Petey finally understands what's happening. He's been smelling the arrival of Dog Man’s period.

 

From his point of view, Dog Man stiffens as his secret is finally revealed. Oh, how will Petey react? Is he going to run away? Will he ignore Dog Man's request and make fun of the situation? But when he hears nothing but silence for a solid few minutes, Dog Man turns his head to look at Petey. And what he sees nearly makes him dripping wet.

 

It's the same look Petey’s been giving him since yesterday, but with more intensity, fervor, and downright feral desire. His eyes are blown so wide, Dog Man can barely see the color of his irises. His fur is fluffier than it's ever looked, making him look like a cloud of pure orange and black striped fur. And his tail whips around from side to side, like a snake slithering towards its prey. Petey looks like he's going to swallow Dog Man whole.

 

“Petey?” Dog Man signs, his body still as he watches the feline intently. But Petey doesn't respond. It's as if he didn't even see the sign. Dog Man bites his bottom lip at this. How is he supposed to get the cat's attention? I mean, he could bark, but… Petey hasn't been a big fan of his barking. Plus, what if it scares him away? He doesn’t want to do that. Well, Dog Man doesn't really have any other choice besides touching Petey. And that would be the worst option of them all. First hand experience taught him better.

 

So, he lets out a gentle but firm bark to get the feline's attention. Though he couldn't help the soft, wavering whine that came after it. Petey's head shoots up at the noise, his ears perking on high alert. He quickly stands to his full height and lets out a loud meow, followed by a gentle trill. It was a question. A question in which Dog Man could understand clear as day. Petey wanted to know if he was alright.

 

Rather than sign, as that seems useless in this scenario, Dog Man lets out another bark to confirm he's okay. For the first time since becoming Dog Man, he finally feels like a true animal again. He and Petey are connecting in a way that most wouldn't be able to. They aren't concerned with speaking in a language with grammar or in which they both had to learn. They are just two animals now. Animals using their natural instincts, which flows through every part of their DNA.

 

Petey meows again as he brings his snout to Dog Man's neck and begins taking in his delicious scent. He knows it's stupid. He knows it's not the same thing for humans, but in his brain, now fueled by pure instinct, he only has one thing on his mind: breed. Breed with this gorgeous dog that drives him absolutely wild. The one who constantly invades his brain when he's trying to work or even when he's sleeping. The one who cares so deeply for Li’l Petey, 80-HD, and the lives of everyone in Ohkay City. And the one who he hopes by the end of this will be his lover, his boyfriend, his entire world, and above all, his mate.

 

Dog Man whines and begins sniffing Petey back in response, his nether region producing evidence of his arousal. He can hear the feline purr as he continues with his mewing. They stand there in the blinding bliss of their growing arousal as they partake in a duet of sweet whimpering mph, mph, mphs and affectionate vibrating prr, prr, prrs. Neither wants it to end.

 

Their duet is, sadly, cut off by a sharp, painful whine from Dog Man. One that cuts Petey deeply. He needs to do this now. In one smooth motion, Petey pivots Dog Man around on his feet and gets him down into a doggy style position on the doggy bed. He gets down on his knees shortly after, folding himself over Dog Man’s body. His barbed heat meets the hybrid's slick folds as firm hips meet bouncy ass, causing both men to moan and melt from the pleasure. The brewing sensations cloud their minds more than they already were, making their instincts cry louder for the inevitable outcome.

 

Petey then wraps his arms under Dog Man’s hips, his paws gripping onto his soon-to-be mate's stomach. Then he takes a moment to assess the back of Dog Man's neck. Normally, the feline would grab on the scruff of whoever he was having sex with. But because of Dog Man's hybrid-ness, there isn't much of a scruff to grab. Luckily for Petey, he's still wearing that ridiculous police uniform of his. And the collar will make a perfect scruff for the deed.

 

So he does just that, getting a firm, yet comfortable grip on the shirt collar with his teeth. A powerful, possessive yowl leaves Petey's throat as he does this. One that makes Dog Man shudder with need as his hips buck back into the feline. Then Petey’s hips start moving. And any composure the two have dissipates. With a sharp, whiny howl, Dog Man rolls his hips back, saturating Petey’s cock that so perfectly fits between his aroused pussy lips. Little yips line his howl as the barbs lightly prick at his sensitive cunt. It feels like little strikes of lightning are coursing through his very being every time Petey moves his hips back.

 

And it’s heavenly.

 

Loud, gorgeous mews escape Petey's throat as he rocks his hips, enjoying the sounds and smells emanating from Dog Man. His head swims in the euphoria being created as the two men hump each other. Keeping his grip on his mate’s shirt collar strong, Petey rocks his hips forward one last time before pulling away completely. Now, his cock is perfectly coated with a mix of slick and period blood. The scent and sight of it all is downright intoxicating.

 

Having had enough of this prep, Dog Man lets out a huffy, impatient whimper. A whimper begging Petey for them to go all the way. And the feline is more than happy to give it to him. So Petey frees one of his paws from the grip on Dog Man's stomach, lines himself up with that beckoning entrance, and finally slips inside.

 

Oh, how they both cried out in a blissful duet of pained pleasure. It makes Petey let go of Dog Man's collar as he yowls out loud, almost sounding like a lion’s mighty roar. Dog Man is tight. Tighter than he thought, and it's making his head spin. Dog Man, for his part, lets out a high pitched bark as all the air leaves his lungs. He feels so full and so, so good for it. They pause when there's no room to move further. Once Petey gains a steady breath, he growls out to Dog Man and nuzzles the back of the hybrid's neck. Dog Man howls back at him, granting him permission to continue. So he does, slowly pulling back until only the tip remains inside. Sharp whimpers and yips follow the action.

 

“You okay, Dog Man?” Petey rasps out, his voice cracking as he finally speaks again. If it weren't for the situation at hand, he’d be embarrassed as hell.

 

“Yes, Petey.” Dog Man signs where the tabby can see. “I need this. Please.” How could Petey deny such sweet begging?

 

“You're gonna learn why cat sex gets so loud.” Petey adjusts their position before whispering into Dog Man's ear, “So get loud, mutt.” and grabbing the uniform collar back into his mouth. Then he thrusts forward. Hard and fast. And oh, how Dog Man howled. Despite the initial pain of Petey's barbs scratching against his inner walls, the pleasure that lies underneath begins overshadowing it. Especially as the feline thrusts into him with reckless abandon.

 

Just like Petey requested, Dog Man got loud. Really loud. From sharp barks to wavering yips to high pitched whimpers, the hybrid let it as out as he got the pounding of his life. Petey isn't faring much better. A mix of deep growls and sweet mews leaves his throat and through the corners of his mouth. The occasional yowl would slip out every time Dog Man's pussy clamped on his throbbing cock, which got more frequent by the minute. Everything in this moment is perfect, and it feels like all his senses have heightened.

 

He can see every little detail of the surprisingly spacious attic. Smell the potent scent of sweat and arousal coming from their lovemaking. Hear every single noise coming from Dog Man, no matter how small or weak. Taste the obviously dirty fabric from the shirt collar in his mouth. And feel that stupid uniform against his body and warm skin in his paws. It all makes the situation that much sweeter. But Petey knows he can do better. Sure, Dog Man's sounds are music to his ears, but he knows there’s more in there. More sound, more arousal, more pleasure to be had. Petey just needs to find Dog Man's sweet spot. That one spot that will make his mate melt from total, dominating ecstasy.

 

He just needs to find the right angle and…

 

A whimpering cry filled the room. It sounds weak. It sounds like a prayer. It's exactly what Petey was going for. He found Dog Man's g-spot. So he hits it again. And again and again until he’s thrusting in and out of Dog Man so fast, it could practically start a fire from the friction. Though there's already a fire that burns within the cores of the two men.

 

Dog Man’s solo of whines, barks, and howls grows louder than ever as Petey rams into his spot repeatedly. He never knew he could feel like this. Never knew he could let go and give up control. Never thought he'd feel satisfied in his new body. And he certainly never knew just how good Petey is at sex. What else could they do together outside of this scenario? The flood of ideas makes Dog Man shudder with need as his vision begins to blur. He doesn't know how much longer he can last.

 

‘He's mine now. MINE! And I’ll make sure everyone knows it, too.’ Petey’s mind can't help but conjure up the most beautiful images as he humps towards his climax. ‘He’ll have my marks. My scent. Our babies. And he’ll look so fucking gorgeous carrying them.’ Petey finishes his thoughts as his hips stutter. He's so close. “F-fuck, Dog Man! You're amazing. So sexy an-and handsome. All of you is.” Petey breathes out with another voice crack as he lets go of the shirt collar once more. “I want to fill you up and give you our kids. Do you want that too?” Petey rested his chin on Dog Man's shoulder and gently caressed the hybrid's cheek.

 

Luckily for him, Dog Man knows his answer right away.

 

“Please do it. Give me your kittens, Petey,” Dog Man signs with trembling hands. It's the sweetest promise Petey could ever give him. Li’l Petey healed an ache in his heart. Completed a goal he’d long yearned to fulfill. Raising more children with Petey would be the perfect cherry on top. The shaky sign makes Petey whine with bliss. Dog Man wants this just as much as he does. And that's enough to send him toward the edge.

 

Snaking his paw downward, Petey plays with Dog Man's neglected clit, guiding the hybrid towards his own release. It does the trick perfectly. A rising sound of howls leaves Dog Man as Petey changes his tactics from fast, wild humping to harsh, staccato thrusting. Petey copies the hybrid's noises with accompanying yowls. A duet for the ages. One that symbolizes this newfound love and passion sparking between them. And with a final note of howl and yowl, their climaxes crashed together. The ecstasy washes over them like the rising Nile as they bask in their respective afterglows.

 

Dog Man can't believe that actually just happened. He was prepared to hide his period from Petey all week. Keep on the down low and go back to normal after it passes. But he's so glad he let his guard down and let Petey in. Who knew letting go and giving up control could be so rewarding?

 

Petey's high on life. He had only one goal: find out why Dog Man smells different. Well, he certainly found out. And he's so happy that he went into the attic. He didn't go with the notion he’d fuck Dog Man's brains out, but hey! Life is never predictable.

 

Once the two men have gathered their bearings, Petey gently flips them onto their side, never separating the connection between them. He, of course, becomes the big spoon. But Dog Man doesn't care about that right now. Why care about such trivial things? With a soft coo, Dog Man snuggles into Petey before letting out a loud yawn. He finally feels relaxed enough to get some rest. Petey trills back in response and begins licking and grooming Dog Man's head, encouraging him to sleep. A deep, rumbling purr shortly follows suit. So, safe and warm in the arms of his lover and new mate, Dog Man succumbs to the allure of sleep and dreamland.

 

Because for the first time in a long time, he finally has everything he's ever wanted in life. And time finally feels like it's going steady again.