"Are you sure about this?" Shar asked softly, fidgeting as she stood beside Kacey outside the hybrid's home.
"I'm sure," Kacey confirmed with a smile and squeezed her lover's paw reassuringly.
"I-I've never done anything like this before... then again, I've never been in a real relationship before either."
Kacey giggled. "This'll be a first for me too and we'll do it together. <3"
The two had been standing for a few minutes outside Kacey's home. The summer was over and the teens were all on their way back home from the resort and Kacey had decided to intrduce Shar to her parents right off the bat. She didn't really have a choice either; after that first, glorious night together her friends Dio, Cara and Nero had interviened out of curiosity, kicking in Shar's door and leaping in like action heros. A long explanation and introductions later, the taller canine was brought into their fold and introduced as Kacey's girlfriend.
Now, having returned from Rhondo Resort, it was only a matter of time til eveyrone else found out about them. Nero wasn't eactly the best at keeping secrets so it was best to get it over with right away and meet the parents. They stood together with their bags at their sides, Kacey dressed a bit like both her parents in loose-fitting jeans and a cute halter top with sturdy boots while Shar wore a rather formal dress. The transgender canine wanted to look her best for this first meeting but seemed to think of it more as an interview than introduction.
"Ready?" Kacey asked, extending a paw to knock. Shar nodded.
"Rea-" she began but faltered when the front door swung open and Kacey's mother, Katie stood in the doorway.
"Kacey!" the smaller, pastel-blue bunny with floppy ears cried and hugged her daughter tight, her cute yellow housedress swishing as she did. "Oh, it's so good to see you! Did you have fun at the resort?" She paused and looked up at Shar, a kind smile on her face. "Oh, hello, dear. Are you a friend of Kacey's?"
Shar was frozen in place, surprised and unable to form words, just clasp her paws in front of her and nod meekly.
"Oh, well, come in, please!" Katie gushed and led them both inside.
Shar felt catatonic for a bit, the world moving around her without focusing. She could barely heard Kacey's voice but couldn't make out the words, just trying not to panic. The Labroador loved Kacey with all her heart and wanted to do this for her... but it was so much at once. Kacey seemed to notice and reality snapped back to Shar when her smaller love sat down in her lap and looped har arms around Shar's neck.
"Mom, Mommy," Kacey said to the tall panda who currently had Katie in her own lap. "This is my girlfriend, Shar."
Girlfriend. That world brought a blush to her cheeks and a welling of tears in her eyes. Shar was someone. She was Kacey's girlfriend. Those facts swirled in her head and she thought her heart might burst with the love she felt for the hybrid in her lap.
"K-Kacey," Shar whispered and wrapped her own arms around Kacey, hugging her tight and smiling, feeling the apprehension melt away. It didn't matter what happened now. The two parents gazing at her could hate her if they wanted, it didn't matter. kacey loved her and that meant the world and more to Shar.
Therefore it was more than a surprise when both panda and bunny whooped for joy at the news. Even Kacey was surprised, watching as Katie was tossed into the air and caught with such practiced ease, the couple twirling and cheering this news.
"Uh... I guess you're okay with it...?" Kacey ventured and got a goodly amount of laughter from Candace, the panda who sired Kacey.
"Okay? We're thrilled!" she announced, Katie now sitting on her strong shoulders. The panda was not just tall but very sturdy, huggable and strong. "Our daughter has someone she loves and loves her back! We're so proud of you, sweetie."
"She's so pretty!" Katie gushed and nimbly hopped down and clasped her mate's paws in her own. "This calls for a celebration... <3"
Shar couldn't belive what she saw. In no time Katie had unzipped Candace's jeans and quickly pulled free the panda herm's thick, black cock. Bending at the waist, Katie leaned down and bobbed her head, sucking on her mate's member right in front of her daughter and Shar. Not only that, her yellow housedress rode up just enough for Shar to make out the bunny's lacey panties, the small bulge in them and the perfect shape of a buttplug in the bunny's rear. That was surprising and arousing enough for Shar to start tenting her dress.
"Oh no..." she muttered, blushing like mad and trying to cover it up out of habit when kacey interceded. "Oh... right. S-Sorry."
"It's okay, love," Kacey soothed with a smile. "I forgot to mention, they're really, really open about things like this and... well, it'd be quicker just to show them. <3"
Shar did. Katie angled herself to see a little while still servicing her mate while Candace watched as Shar lifted her skirt to reveal her own panties and the twitching bulge of her sheath inside. "I-I'm tr-" she began but Candace lifted a digit to gently silence her and smiled.
"No worries, hun," she said with a grin and sighed, petting Katie's head as the bunny sucked her eagerly. "Well, now that introductions are done, let's head upstairs. <3"

***

In an about-face from their time at the resort, Shar found herself in Kacey's bedroom naked and sitting on her bed. It was a little small, just enough for the hybrid and one other to sleep on and was just big enough to fit Shar. Her sheath was still swollen and twitching from earlier and while her cock had yet to emerge, the thump of the bed in the master bedroom nearby didn't help. Kacey's parents were going at it like mad after giving Kacey a small key to something Shar couldn't guess. 'Use responsibly and have fun!' the girly bunny had said before Candace carried Katie to their bedroom and shut the door.
Shar was aroused and confused with everything. This wasn't at all what she expected, not that it wasn't pleasant. Kacey said she was getting 'a little something' for them and told the canine to make herself comfortable. Shar did and now sta stock still wondering what Kacey meant and what that key was for.
The answers came fast when there was a light knock on the bedroom door and Kacey's soft voice called, "Ready? <3"
"R-Ready," Shar replied and gasped when the door opened.
In walked Kacey, wearing a white collar with a leash clipped to the ring in front. She held the leash in one paw and a small bag in the other which she set down next to Shar. The hybrid was blushing deeply but smiling as she knelt down before Shar and held up both paws, offering the leash. Shar was rock-hard almost at once, blushing and looking down at her beloved and feeling her heart pounding in her chest.
"K-Kacey?"
"Arf! <3" Kacey barked cutely and blushed a little more. She wiggled her rump as she kelt, trying to make her fluffy bunny tail wag like a dog. Shar caught on quick and smiled, reaching down to pet the little hybrid between her perked ears.
"Good girl," she cooed and giggled when Kacey barked again, taking the leash and praising her 'puppy'. "Who's a good girl! <3"
"Hnn! Hyunnn!" she whined and nosed the small bag she set beside Shar. Curious, the canine peeked in and blushed.
"Oh my... such a naughty girl, <3" she giggled. "Let's get you ready, puppy."
Before long, Kacey was dressed again but a little different than before. On both paws she wore black rubber gloves shaped like cartoonish paws, making her digits useless. Kneepaws shaped like similar paws went on and a pair of gentle silicone straps secured Kacey's ankles to her thighs, making her walk on all fours, paws and knees. There was a funny little gag in the shape of a partial mask that went onto Kacey's face. Her muzzle was replaced by a cute puppy muzzle made of black rubber with a thick oral plug that kept her from speaking, only able to whine and whimper.  Finally, the tail plug went carefully into Kacey's tailhole (after much eager licking by Shar).
Standing up at last, the canine looked down fondly at her cute little 'puppy' eagerly nuzzling her thigh. "Such a pretty puppy," she gushed and pet Kacey again, giving her rump a playful pat. "Wanna go for walkies? <3"
Kacey gave an eager whine and soon Shar found herself walking Kacey around the house, taking the chance to explore the property while Katie and Candace went at it hard in their bedroom. They hesitated at the front door, however, neither quite ready to make their little petplay public yet. Kacey was ready to do anything for Shar but Shar needed a little time first. She knelt and pet her beloved tenderly as she spoke. "Someday, love. I promise I'll be able to someday. Now, let's head back, pup."
Back in the bedroom, Kacey scurried away once her leash was unclipped, moving towards the bed. From this view Shar could see how very aroused the hybrid was and saw how hard Kacey's pink cock was. Shar was getting quite worked up as well and decided to make the next important jump. After helping lift Kacey onto the bed, the puppy-fied hybrid turned and bowed, wiggling her rump at Shar and looking over her shoulder like a female wanting to be mounted.
"Aww, you're so wet, sweetie, <3" Shar teased and tenderly stroked Kacey's damp pussy, giggling at the whimpers and shivers that elicited. "But this time, I... I want to be in your cute rump. <3"
"Hnn?" Kacey whimpered, eyes wide and blushing but not objecting; not that she couldn't, it'd just be a bit more work to object.
"Relax, girl," Shar soothed and patted her behind again, one paw moving to gently pull the tail plug free. It popped out and the very aroused sigh Kacey gave only made Shar's shaft throb harder. "Relax... <3"
Moving behind Kacey, Shar gently pressed the tip of her solid-black canine cock to Kacey's tailhole. It was still quite lubed from before and Shar was slow and gentle. Kacey was no stranger to this kind of play but this was the first time with her new love and she whimpered and whined as she felt herself stretched little by little. Small huffs and sighs and groans escaped the muzzle-gag and Shar whimpered plenty herself as she invaded Kacey's tight rump. Goodness, but she was so tight!
"Ah!" Shar gasped when she felt her knot bump between kacey's rumpcheeks. She was in! "Oh, Kacey... oh, I love you... <3"
"Mmmhh... <3 <3 <3"
They started slow at first, little movements to get Kacey accustomed to such size but soon their own aorusal gave way and Kacey was going mad with pleasure as Shar pounded her tailhole hard and fast. They both whined and moaned loudly, Kacey pushing her hips back, feeling that huge knot press against her tailhole over and over. After what felt like forever, the desire was too great. Kacey pushed back more as Shar tried to pull back. She wanted the knot inside her.
"A-Are you sure?" Shar whimpered fearfully and saw the enthusiastic nod from her partner. "Okay... I love you! <3"
That was when Shar really started pounding her rump, the thrusts were so hard and fast. Embracing instinct, Shar moved up and wrapped her arms around Kacey's waist, pumping her hips frantically, pressing that knot as hard as she could against Kacey's tight opening. Just when it felt like it would never fit...
Pop!
Kacey fainted right away, the orgasm the knot inside her forced out was beyond what she felt before. She was only vaguely aware of Shar's loving words as she felt cum being pumped into her. After what felt like forever the hybrid woke again, this time on her side and out of the puppy-gear. She felt Shar's knot still inside her and stroked the very noticable bulge all that cum had made in her tummy.
"I love you so much," Shar whispered and kissed one of Kacey's ears tenderly. The canine was on her side too, arms wrapped adoringly around Kacey.
"I love you too," the hybrid repeated and giggled. "I take it you liked that? <3"
"Oh, very much!" There was more giggling before Shar added, "And it gave me ideas too... <3"
"Oh? OH! <3"
Kacey gasped and nearly came again when she felt Shar gently pull her still-swollen knot from Kacey's rump with an audible pop. Like her mother, Kacey knew how to quickly keep herself from leaking any lovely cum and again placed the tail plug in herself once Shar was free. After a little shifting on the bed, Kacey was quite surprised to see Shar kneeling at the side of the bed, this time wearing the collar and leash and offering the latter to the cum-filled teen.
"Shar?"
"This, um... it's a secret fetish of mine..." she confessed and smiled, blushing deeply. "I-I've fantasized about being th-the puppy. I-I'd love to be yours! <3" It was true, her throbbing cock confirmed just how much it turned the Labroador on.
Kacey giggled. "You're a switch too?" she cooed in amazement and smiled. "Goodness, I love you, Shar. <3"
"Woof! <3" Shar blushed again but looked quite happy, her very real dog tail wagging behind her.
"Well, I think I could do with a little tongue-bath, <3" Kacey mused and stood, leading Shar towards the shower by the leash as the canine crawled bediantly on all fours, looking so incredibly happy. "Wanna give me a little licking, pup?"
"Woof! <3"
"Good girl!" Kacey turned and pet Shar's head, surprised at the sudden response as Shar's body trembled and a generous amount of pre leaked from her black cock. "Oh my, someone has a praise fetish too. <3"
"Woof! <3"