Things to note

This story isn't about pokémon, but full furry

This story was made some months ago

Lastly, this story contains explicit incest sex. You have been warned

[ • • • ]

Trin(Kitsune) x Thand(Wolf)

Trin Kyubi Lernster, the eldest son of the legendary nine-tailed fox. As a spirit of magical energy, he spends most of his time in secrecy to avoid the eyes of those who desire his powers. His siblings, however, were born under alternative specie's bodies to disguise their true nature and live like normal people.

But today is a special case. Today marks the twenty-second year of his birth, and on these days he visits each of them individually to celebrate. Now, it's nighttime, and there's still one of them left to visit…

[ • • • ]

Leaping from the high-up rooftop, the silhouette of an anthropomorphic fox reached out for the edge of the next building's open window. From the light escaping from inside, the fox's face was revealed. His body is covered mostly in white fur, but the fur on the legs, forearms, ears and the tip of his nine tails is blue in color, and his eyes are heterochromatic, being the left pupil a bright pink while the right one is a beautiful cyan.

With a strong pull, he jumped inside and landed on his feet after doing a quick midair spin. Seeing himself in a bedroom, he analyzed the mess around him, such as the poorly made bed and lots of scribbled papers lying on the ground.

– Unorganized as always. – He laughed, then walked through the already open door.

There he met a large living room, with a "L" shaped couch in the center, facing a large tv hanging on top of a lit chimney. As expected, there was someone else there, placing a silver tray containing a medium sized cake on the glass table next to the couch.

This someone is Trin's sister, Thand. An anthropomorphic wolf coated in a deep black fur, bearing eyes and the interior fur of her eyes in the same crimson color. Her mane combined behind her head, similar to a long hair.

– Oh! You've arrived, Trin! – Upon seeing her brother, Thand quickly went over and hugged him tightly.

– Hey, sis! Got you off-guard, eh? – Trin hugged back, tapping her back a few times.

– Actually, you're just in time! I finished the cake just a minute ago. –

– Sweet! Let's get to it, then! –

– Not yet, there's something else I wanna give you first. – She grabbed Trin's hand, pulling him closer to the couch and pushing him onto it. – It's your birthday gift! –

– Aww, sis! You didn't need to get me any- – The kitsune was quickly cut off by a prolonged kiss on the lips.

Thand had jumped on his lap with immediate contact, catching her brother by surprise. She pressed him on the back of the couch for the duration of the kiss, and after separating to breath, panting slightly, they just stared into each other's eyes.

– Heh… That's one gift I cannot refuse.~ – Trin's hands moved to grab Thand's waist as a grin appeared on the side of his mouth.

– Good, because that was just the appetizer. –

The wolf lifted herself, standing on top of Trin and aligning her nether regions with his head. From his point of view, he was met with Thand's hidden chasm. Not wasting any time, he licked the outside entrance as soon as it came close, so much that he even gave it a short kiss. This made Thand giggle shortly.

– Romantic, aren't you?~ –

Instead of giving a response, the fox pressed onward, piercing through the gap of her crotch with his tongue. Like before, he kissed his sister's lower lips, though this time with so much passion it seemed as if it was her mouth. As it happened, his tongue explored her insides eagerly, leaving no corner untouched.

Such exploration of her inner side sent a flood of pleasure throughout the wolf's entire body, evidenced by her multiple moans escaping while she was mesmerized by the sensation. Inevitably, her tail wagged around as another signal of her pure bliss.

Meanwhile, Trin's hands moved to his own crotch, holding his flaccid dick and massaging it. Over the time he was making out with Thand's pussy, it began hardening little by little, assisted with each stroke.

But suddenly he let go, grabbing Thand's thighs and pulling her to lie down at the couch. She was surprised at first, until seeing Trin right between her legs, still exploring her velvety insides while looking straight at her with loving eyes and his face wet by her vaginal fluids.

With an audible popping sound he parted ways from her, letting his tongue dangle around completely soaked and still connected to the pussy through a thin string of saliva. Both were panting, looking at each other in silence until the male got closer to give his younger sister another kiss on the lips.

– Enough warm-up, I want the true gift! –

– Then get it, brother. It's yours to take.~ –

Trin grinned. He adjusted himself and began rubbing his cock's underside against her pussy while holding her legs. Soon the female wolf used her fingers to pull each side of her lower entrance, granting immediate access to Trin as he thrust in slowly.

Once the tip made contact with her cervix, Thand let out a very loud moan. The fox pulled back just as slowly, but then thrust back in with some strength, earning more moans from his sister. As he began humping the wolf's pussy, a constant plapping sound echoed through the living room alongside their moaning.

– Ahh… It's way better than just licking. – Trin whispered.

They kept at it nonstop, always at a steady pace to pleasure them both. Thand's mouth was open all the while, with an increasing feeling of bliss as if she was in paradise. Soon she even grabbed her own breasts, groping them with both hands.

Their panting became heavy as time passed. Trin began speeding up his relentless thrusts, and now the siblings were much louder than the plapping echoes. Each lunge was like a punch, strong and precise, as well as rhythmic. To hold his moans in, he bit his lower lip, though it failed to fully contain his voice.

– Go, brother… Show me no mercy!~ – She managed to scream out.

– No… mercy… huh?~ –

Suddenly the kitsune stopped his penetration completely, which was received by a confused look on the female. However, a few seconds later Trin's body changed, thanks to his natural shape-shifting abilities. His muscles got slightly bigger, his teeth sharper, a third, purple eye suddenly sprouted out on his forehead and nine others on the tip of each tail. And just as she was going to ask what happened, she also felt her brother's dick getting bigger, and bigger, to the point she didn't think the knot could ever get inside her pussy.

Trin chuckled a bit, looking at her with a big smile. – How do you like my 'true' form, hm?~ –

– Trin, what are you… – She was immediately cut off by him lowering himself to give her a kiss.

– You can process it later. Right now, I have a mission: to fill you completely!~ –

Not one second after saying that, he resumed piercing into his sister, now not holding back anything; going so fast it wasn't humanly possible, and with such force it really felt like his dick was punching into her womb, which now felt incredibly tight and wet to the male fox.

Weirdly, he now didn't have any trouble keeping his moans and panting at bay, but on the other hand Thand became so loud you could hear them from outside if the place wasn't soundproof. Since he wasn't bothered with the heavy breathing, Trin leaned down once again to give small kisses and bites to her neck, all while groping her breasts when she wrapped her arms around him.

– This… This is… so…!~ – Thand could barely even think properly with this overwhelming pleasure coursing through her very soul.

– Are you ready to be finally marked as mine, sis?~ – He whispered to her ear, quietly.

– Yes! Do it! Cum in me, brother!! –

She pulled him closer at the exact moment he gave one last push, infiltrating his knot inside the wolf's vagina and the cock's tip into her womb. Like if it was perfectly timed, he shot a huge burst of white fluids, quickly filling Thand to the brim. As fast as she was painted inside, the waves of sperm leaked from their connection point, running down his balls and her anal hole until it reached the couch, forming a small pond that was becoming a large lake.

Thand was left out of energy, gasping for air after so much moaning and panting. When she opened her eyes, she saw Trin looking at her with all twelve of his eyes bearing a loving expression and smile. He pecked at her lips briefly before lying down on top of her.

– Best gift ever, sis. –

– Glad… you enjoyed… it…~ – They nuzzled, ready to rest together, forgetting completely about the cake right next to them.

– Oh, I should probably tell you that I'm too big to take it out now… – Her eyebrows rose, surprised.

– B-but you can… change forms again… right? –

– Well, I can. But why do it noooow?~ Besides, I feel like going for another round! –

– You can't be serious… Trin, you've exhausted me more than I've ever had in my life! –

– Yeah, that's why I'll go veeeeery easy on you. So just lie back, get comfy, and let me do all the work.~ –

Playful as always, Trin gave her a reassuring smile and a kiss on the cheek. Thand couldn't possibly deny that to her brother, she loved each second of this, and could really enjoy some more. Though, maybe, be a little quieter this time, and not make such a mess on the couch.