A/N: This story is based on a Lucario/Braixen image on e621 (ID: 439622).

Winter in Kalos is beautiful, but dangerous. Icy winds, powerful storms and a lack of food made it hard to survive even without having to worry about predatory Pokemon coming after you. It could be almost impossible to survive out in the wild on your own, but with a friend, you had a chance.

Braixen felt so lucky to have a friend like Lucario. He was fast and strong and brave, one of the best fighters she knew. But ever since she was a Fennicken and he was a Riolu, she knew he also had the biggest heart of any Pokemon she ever met. He was handsome and sweet and kind, protecting her from the worst predators and bullies, teaching her how to defend herself when they evolved. They had found this cave in the woods a few months ago, and together, they renovated and stockpiled the place to become their home for the winter. Not the most ideal place, but certainly a nice, cozy place to be if with a friend (and if one of you is a fire-type, of course).

Tonight was going to be one of those nights.

She knew something was up when Lucario - after putting away her bag of berries and shaking off the snow from his fur - went and blocked most of the cave's opening with a large boulder, as she was working on brewing some healing potions. "Hope we have enough wood to keep the fire going," Lucario advised, rubbing his paws over the fire, "There's a blizzard hitting us tonight. Biggest one I've seen this season. We might be stuck here for a few days."

"Good thing we stocked up on supplies." Braixen replied, nodding to the fire in the center of the chamber. "We have enough wood and water to last us a good long while. How many berries did you get?"

"Enough for a stew tonight," He smiled, "and plenty to snack on afterwards. I even found your favorite."

Braixen looked at the assembled bounty, and gasped. "Are those Roseli Berries?!" She picked up one, sniffing them. "Oh Arceus, they are! How did you find them?!"

"It wasn't easy." Lucario admitted. "I happened across them atop a high cliff that I was just able to jump up to. This was all I could grab on short notice."

"This is amazing, Lucario!" She cheered, hugging him and kissing his cheek. "Thank you so much!" Roseli Berries were hard to come by in this part of Kalos, especially this time of year. But they were her favorite berries, and Lucario would always grab a couple when he found some. Braixen had a small stash of them in the back of the cave, breaking them out as a special snack that she'd share with him on special occasions.

The next few hours went by rather peacefully. They worked together to feed the fire, to prepare the berries and make a delightful stew. They ate together out of stone bowls, keeping close to the fire and each other for warmth. The wind continued to howl outside, an icy breeze blowing against their necks and causing the fire to dance.

"I'd roll the rock all the way over," Lucario said, shivering, "But I'm worried the fire would eat up all our oxygen while we sleep."

"Guess we'll just have to cuddle up tonight, won't we?" Braixen suggested, raising a suggestive eyebrow as she sipped from her bowl. Lucario looked away, but she could see the blush on his cheeks. Things had changed between them, ever since they evolved into their current forms. They were able to do things now that they couldn't back on four legs, and parts of their anatomy that used to be ignored were now in full focus. On one hand, being able to hug and spoon and cuddle were big perks, as far as she was concerned. On the other hand, Braixen would have to adjust her fur so she wouldn't embarrass Lucario with her pronounced vagina and small but developed breasts. Worse, Lucario had stopped being the big spoon for her, as it wasn't uncommon to wake up with morning wood poking her back and staining her fur. Lucario, ever a gentleman, would get all flustered and embarrassed, and it made her sad that he'd been putting distance between them so as to avoid "being inappropriate" around her.

Braixen planned to end all that nonsense tonight.

"Hey, Lucario," She said, once they finished their meal, "I have an idea on how we can stay warm tonight."

"Really?" He asked, curious and dense, "What?"

She smiled, putting away her bowl. "Lucario," She said, "You know I love you, right?" Lucario blushed, nodding. "Do you love me, too?" She asked.

"Yes, of course." He assured her, putting his own bowl away. "You're my best friend. You're smart, and kind, and funny, and you're a lot stronger than you give yourself credit for."

Braixen smiled, taking his paw in hers. "You've done so much for me," She spoke, soft and gentle and alluring, "Ever since we were cubs. You're so strong and brave and caring, and you've saved me more times than I can count. I just want to show you how much you mean to me, and make you more than just my friend." She scooted closer to the jackal Pokemon, close enough for their noses to almost touch.

"More than a friend?" He asked, trying to lean back in embarrassment, "You mean... like mates?"

"Yes." She insisted, "We're both adults now, aren't we? We can both explore and enjoy one another? Make each other feel good? Become lovers?" She placed his paw on her chest, over her heart and atop her highest breast. Both canines blushed at the touch, his claws delicately squeezing and circling around her nipple. Braixen bit back a giggle at the feeling of his paw on her fur, rubbing a surprisingly delicate area.

"Do you like it?" She asked. Lucario nodded, giving an embarrassed smile. To make him feel less self-conscious, she reached out and placed her paw on Lucario's chest spike - something she wanted to do for months now. It was warm at the base, close to his fur, and cool at the tip where the cold air touched it.

"How does this feel?" She asked.

"It feels... warm." Lucario said, placing his other paw on her's. They stared into each other's eyes, leaning closer and closer, until their lips touched for the first time. The feeling was electric, energy flowing through them. Braixen kissed deeper, and Lucario welcomed her, their tongues licking and wrestling one another. They held their kiss together as long as they could, before having to pull away to breathe. They panted together, taking in each other's scent and pheromones.

"You're a good kisser." Lucario complimented, trying not to drool.

"Thanks," She replied, "You too. Wanna keep going?"

"Yes, please."

Braixen smirked. She leaned forward, pushing Lucario back until he gently laid upon the ground. She kissed him again, deeper and more passionately, and her lover returned it with equal strength, their tongues wrestling in his mouth. Both his paws roamed up and down her torso, feeling her fur and squeezing each breast. While one of her paws stroked his cheek and neck, her other paw went down his chest, down his belly, coming to rest at his sheath and balls. Lucario gasped, the gentle caress of his family jewels tantalizing him into a near trance. She could almost feel his nuts churning, producing so much potent, virile seed. The thought of him entering her, filling her up with his cum, maybe even giving her an egg, set off an inner fire deep in her loins.

The thought must've occurred to Lucario, too, as his member began emerging from his sheath. She continued to rub his genitals, coaxing his member to grow and emerge until he reached full-mast, a tall, thick stick of meat half the size of her forearm. Thin blue veins crisscrossed his cock, throbbing with need, glistening in the firelight. Braixen scooted closer, bringing her hot, moist muff against it. Leaning back to support herself against his knees, she started rubbing her cookie against his weiner, her fluids mixing with his precum to make a nice, slick lubricant. They were both panting now, their bodies equally ready for what was about to happen.

"Hooooh, hey, Braixen," Lucario said, trying not to lose himself in the feeling, "Before we go any further, can I ask you something?"

Braixen looked at him curiously, continuing to slide up and down. "Sure."

"It's a... Lucario tradition," He explained, holding his paw out, "When mates come together. They summon their Auras and combine them by... holding paws. It's supposed to allow them to share each other's feelings and sensations. I don't know if it works with other Pokemon, but I can't think of anyone I'd rather do it with."

"You want to hold paws while we make love?" She teased, even as her heart swelled with delight. "Lucario, I had no idea you were such a romantic!" As he blushed and looked away, she assured him, "I would love nothing more."

She extended her paw, summoning a ball of fire. Lucario summoned an orb of his Aura. They held each other's paws, red and blue light dancing and merging together. A strange tingling sensation began to spread down their arms, filling their entire bodies with a pleasant warmth. Balancing herself, Braixen held onto her lover's penis, gently pressing down upon it. She bit her lip, putting on more and more pressure, until her pussy finally allowed entrance. The canines gasped. His slick, girthy cock filled her tight, needy, virgin pussy, stretching it out in ways Braixen had never imagined. She stopped just above Lucario's knot, just as the thick bulb of red flesh emerged from his blue-colored sheath.

"Oh Arceus!" Lucario grunted, his free paw digging into the dirt. "Braixen, I... you... you feel amazing!"

"Thanks," She replied, her hips gyrating on their own, "You feel way bigger than you look. Can you, um, give me a moment to get used to... this?"

"Oh? Uh, yeah, definitely," He answered, "Whatever you want."

Braixen felt a little embarrassed to start out so forward only to pump the brakes just as they were getting into it. But at the same time, this was her first time too, and her lover was certainly gifted, as far as she was concerned. She thought this would be more painful than it was, but with Lucario's Aura flowing into her, she figured maybe some of his energy was blocking out the worst of her discomfort. It was taking her a moment to get used to being filled up, and she shifted this way and that to find a more comfortable position.

Finally, she found a good angle, leaning slightly above his chest. Balancing herself, she lifted herself up, almost completely coming off his penis, before pushing back down again. Lucario moaned, his cry echoing throughout the cave. Braixen hummed, biting her lip to keep a little bit of control. She lifted herself again, and slid back down. Up and down, up and down. Soon, The Fox Pokemon found a comfortable rhythm, humping the canine's pole to her heart's content. The Jackal Pokemon closed his eyes and moaned repeatedly, losing himself to the physical and spiritual sensations bombarding him. Braixen watched him, as she bounced against his knot. Her insides squeezed with every movement, filling her soul with light and pleasure.

Of course, being virgins, neither of them were going to last long. Lucario, for his part, couldn't finish until he knotted. Braixen, on the other hand, felt that coil building within her faster than ever before. She had no time to think of pulling out, of the pros and cons of having an egg with her best friend. All she knew was that she wanted release; to feel the wonderful sensation of being filled with warm, virile nut.

"Yes, Lucario!" She cried, bouncing off of his knot, "Yes! I'm almost there! Just a little more! Just a-! Just a-!"

Braixen's fortune-cookie pussy stretched out just enough for his knot to penetrate her. She squeaked, as he filled her utterly and completely. Lucario groaned, squeezing her paw, as he finished. His balls clenched, and he came, thick white cum shooting deep into her womb. Ecstasy filled the entirety of her being, and she leaned her head back and howled her orgasm to the heavens. Her sacred passage squeezed his twitching member as she continued to ride him, milking him for every drop of his virile seed. His cock continued to twitch and pump, and as she looked down at herself, Braixen could see her belly start to bulge.

They held that position for a blissful eternity, rocking gently with their shared delight. As they both started to come down, Lucario released her paw, opening his eyes. Those eyes nearly bulged out of their sockets, as he saw the sizable lump in her belly.

"Oh Giratina!" He swore, panicking. "Braixen, I'm so sorry! I didn't mean to-!"

"Lucario, it's okay!" She laughed, pressing him back down. "It's not like I'm in heat or anything! I have enough ingredients to brew some moon tea in the morning, if you're really worried about it."

"...Oh." He leaned back down with a sigh. Braixen giggled, and laid down atop him, still connected, mindful of his chest spike. They both knew the knot would keep them bound for several minutes, so they decided to make the best of it with some post-coital cuddling. Lucario wrapped his arms around her, stroking her fluffy ears and cheeks. Her tail wagged happily, her muzzle buried in the crook of his neck.

"Braixen?" She whispered.

"Hmm?"

"Do you want to do this again? Like, in the morning?"

"Of course, Lucario!" She giggled. "We're mates now! We can have sex whenever we want. In fact, we can do it again right now if you want."

The Jackal's nose twitched. "I would," He admitted, "But if I did, then we'd been stuck together like this all night. I'm okay with waiting, sleeping like this, sharing our warmth by the fire until morning."

"I can work with that." Braixen sighed, making herself comfortable. "I love you, Lucario."

"I love you too, Braixen." He replied, kissing her forehead. They cuddled together by the fire, basking in their warmth and afterglow, enjoying the peace and comforting quiet of the cave, and awaiting sleep and the promise of tomorrow...