This takes place during the episode, “The Tree Of Life”. When Rani is returning to join the rest of The Night Pride after getting some words of advice from her parents.

…

It was night time at the Tree Of Life, the golden evening sun had just settled below the surface of the surrounding hills and mountains, leaving nothing behind except a clear, starry night sky.

The leader of the Night Pride, Rani, was returning from the flat, lush plains after talking to her spiritual parents. The long grass blew gently in the wind, filling the air with a light rustling sound.
The chestnut-coloured feline was making her way back to the canyon pass which separated the Tree Of Life from the frozen lakes and the outside world, kinda like a grand entrance. However on this one occasion, instead of rushing back there, she decided to take a leisurely stroll back via passing by the tree on her way. Where to her surprise she found her younger yet taller brother Baliyo standing there, looking somewhat nervous, muttering something to himself which she couldn’t quite make out.

“Baliyo?” The lioness said surprised to see her brother “I thought you went off with Nirmala and Surak to find The Lion Guard?”
 
 Baliyo tried to hide his nervousness from his sister, he didn’t want her to know how he felt about the situation, besides he wanted to show that he wasn’t weak for his sister. “I was just waiting for you sis.” 

Rani could tell that something was wrong. Her brother was always a little nervous at times, especially whenever he loses in an attack and the rest of the pride has to defend off without him. This wasn’t the first time that he’d been defeated.
 
 Rani chuckled a little, playing along with it. “Well of course I am silly, come on,” She said, brushing past her brother's side as she began to head towards the valley “We need to go catch up with the others.” She turned away again and continued on, only taking a few steps away on purpose, it was all part of her plan.

Bailyo watched her sister beginning to walk away from him, her tail swishing gently from side to side gracefully, But something ran through his mind. He wanted to follow her, head back to the pass and defend if need be, but somehow he couldn’t find the strength within him to do so, he couldn’t go back there the way he was feeling. Fear had slowly started to take control of his body, his nerves had gotten the better of him.

 Baliyo sighed, looking down at the ground as he did so “Well…” He began nervously, hesitating at his words, unsure if he should say it or not. The lioness stopped and turned around as he began to speak, knowing very well that there was something more to this than what he was making it out to be. And before he could find the words to continue, Rani spoke “Baliyo,” She enquired softly “Is there something you want to tell me?”

The male lion couldn’t hide it anymore, he had to tell his sister how he felt. “You see… I’m just kinda nervous about going back there…” “I don’t want that lion with the scar roaring at me again.” Rani knew it and her theory’s had been proven right all along, otherwise he would’ve been with the rest of the pride. “Nothing would’ve scare Baliyo that much,” she thought to herself. Baliyo frowned, knowing well that he should be better than this, he should be stronger than this.

“Baliyo…” Rani strolled back over to her brother and nuzzled him gently, comforting him, feeling his large, brown mane softly run through her chestnut fur. “I’ll make sure that he doesn’t.”

The feline nuzzled his sister back lovingly, feeling her warmth running through his body as they nuzzled each other affectionately. “You promise?” He asked while continuing to nuzzle his sister.

Rani’s mind froze, she wasn’t sure if she could promise it, besides she didn’t trust that lion herself. Sure, she had the trust from her grandma, Queen Janna, and her deceased parents, however her instincts said otherwise. But somehow she still wanted to comfort her brother, she didn’t know what to say. It was then, in that split second that she thought of an idea, a very naughty idea.

 “Is there any way you want me to prove it?” She said sexually to her brother, her voice silky and smooth, with a hint of flirting in it. A small smirk appeared, adorning her muzzle as her mind filled itself with pure, sexual thoughts. 

“Well…” Baliyo started to speak but before he could finish his response to her question, and being somewhat impatient, she made her move on him. The teenage lioness pinning him on his back to the cold, hard ground, taking him completely by surprise. 

On top of the handsome lion which rested below her, Rani rested most of her lower weight on his body, still holding most of her front weight up with her front paws. She placed one those soft brown paws on his creamed coloured chest, rubbing it gently but sensually up and down through his soft, velvety fur, comforting him while nuzzling his mane at the same time, purring beautifully as her head nuzzled his large light brown mane.

Nuzzling his sister back softly, it made him realised something that he’d never truly thought about before. He’d never really been this close to her, or any other lioness for that matter, in this way. He started to feel a loving sensation build within side his body as his sister's warmth cocooned him. And that wasn’t the only part of him which was enjoying this. He felt his member slowly coming alive inside his chestnut sheath, prodding slightly before it made its escape, his dick seeping it’s way out, arising from the protection of his cosy sheath.

“I’ll take that as a yes then.” The lioness smirked as she giving her brother an affectionate lick across his face. Without saying anything else besides a small chuckle she rotated her body around on her brother's stomach, looking down in between his spreaded legs at his groin, eyeing up his now semi-hard, pink flesh, standing proud in front of her, just begging for some attention from a very sexy lioness like Rani.

She didn’t waste anymore time with this opportunity. Brushing her nose up against his member, her tongue slithering out of her warm, wanting maw, applying small and continues yet passionate and loving licks to his barbed surface, sending bolts of pleasures through his body, making the male lion grunt and groan in pleasure.

Baliyo groaned in pure lust as his sister lapped at his cock, working away at his tender pride. He opened his eyes slightly to see his sister slit, starting to ooze slightly, this was the first time he’d seen one up this close before, and it looked like it was all for him. His curiosity started to whirl up inside his brain. What would it taste like?…. Her delicate flower….. Her sweet, mouth-watering juices… He would soon find out all of the answers to his questions.

He craned his muzzle up to her slit. The tip of his barbed tongue brushed lightly against her entrance, seeing how she’d react. The feline reacted well, giving off light moans as his tongue teased her crazy. “Mmmm, yeah Baliyo!” She moaned as her bare, shimmering cunt leaked her thick, treacle-like ooze. She wanted…. No, needed this just as much as he did. “Just like that!, Don’t stop!”

He didn’t have to be asked twice. Placing his large paws on her side, he relaxed his hesitation. Letting his tongue go more loose on her pussy, digging deeper into her masculine walls. His whisker-less snout rubbed against her tail, nearing her tail hole, sending even more pleasure through the lioness.

The pair moaned and groaned in unison as their oral lovemaking intensified. Baliyo’s cock, fully hardened and half covered in his sister’s saliva, squirted some of his pre all over his tip. Rani eyed it up while still licking his shaft, chuckling softly as her plan came together. Watching his cock leak his manly essence however, was becoming too much of a tease for her, so she decided to take things up a gear.

Without warning, she engulfed his full length suddenly, suckling passionately on it like a cub. Her feline tongue ran through every single one of his barbs, they, in response, twitched gently, loving the pure attention and treatment that they where getting.

Being lost in pure ecstasy, Bailyo grabbed onto her sides harder, holding her down, digging his tongue even deeper into the lioness’s wanting, dripping mound. Taking her genital ooze in all it’s essence, his cock now gushed pre into the maw of the hungry lioness which was feeding on it. Rani moaned louder while sucking on the male’s juvenile dick, feeling his muscular organ exploring her walls, she continued building up the pace of each blow. She moved one of her irresistibly soft paws further down below, tenderly rubbing his fairly large, brown orbs, teasing him like crazy while she sucked off his pride, almost going at full pace now.

“O-Oh Rani!!!” Baliyo’s groans grew louder, a sign of his inevitable climax soon approaching, it was all becoming too much for him to control. Using his hind legs to lock his hind paws together, he forced her muzzle down, thrusting his rear upwards into her maw while using his “hind paw lock” to control her head movement, forcing her to deep throat his rod, which in itself was gushing his salty pre into her soaked maw. At this rate, one of them would’ve had to let loose on the other one, and it was The leader of The Night Pride which gave in first.

“MMMM!!!” The lioness tried to moan while being brutally face fucked by the larger male as her climax hit her, letting her sweet, succulent juices spew all on her brother's muzzle, which it itself was soaked in a mixture of his drool and her ooze. 

“RANI!!!!!!” Feeling his orgasm hit aswell, Bailyo slammed her head down and thrusted his rear upwards one final time, forcing his dick down her throat as far as he could go. He roared as his balls gave way, releasing load after load of thick, potent cum into her eagerly awaiting maw and throat. 

Baliyo collapsed, releasing his paws from his sister's head as their orgasm died down, her pussy still dripping her precious thick liquid onto his face. He was completely exhausted from the pure, erotic fun that they just had, and while trying tried to collect his thoughts, his mind started to wander in questions and wonders. Did she really just let him do this? Let him completely claim her pride with his tongue and let him completely fuck her throat with his cock, and despite all this, she didn’t even try to resist. Maybe this was a sign of how much she wanted to help him, how much she cared for him. Oh how he wanted that feeling for so long and oh how he enjoyed it to the fullest, well at least for the oral part that is. ;)

However, his lewd thoughts were interrupted when he felt the warmth of his sister starting to move above him. Rani chuckled, arising to all fours once again, Baliyo’s dick, now soft, flopped out of her maw onto his belly. His dick still throbbed occasionally, giving out some last few drops of seed it had left to give, before slowly making a retreat for his sheath.

He felt his sister snuggle up to him, swishing her tongue around her soaked maw, collecting up any bits of cum leftover before giving him a passionate and caring lick with her cum covered, barbed tongue, covering his face in his potent spunk.

“How was that” She enquired, cleaning herself up at the same time, moving her paw through her drenched fur. Feeling the creamy essence run through her paw.

“That….. was….. amazing.” He exclaimed, giving her a lick across the muzzle, cleaning it of any leftover evidence. Even though he was still trying to catch the last bits of his breath back, he smiled back at her, almost beaming. “Thank you.” 

“It’s ok brother, The pleasure’s mine anyway.” She giggled, her tone soft and beautiful. She moved her muzzle closer to his brother, cleaning up his face with her now clean tongue, lapping up all of her juices before moving down him, cleaning up his belly, his balls and his furry sheath, making him look presentable for these guests they were apparently welcoming in… Wait… hang on a moment….. The guests!!!. Rani was in shock, she had almost forgotten where she was heading in the first place.

“Now come on,” She ordered, nuzzling her brother once more before standing up. “We better catch up with Nirmala and Surak and get back to the pass before The Lion Guard really do leave for good.” She starting to sprint off, her tail moving from side to side gently just it had done before. However in the rush, she hadn’t cleaned up properly and as such, she’d left a large soaked patch on her crotch, just below her nether region, which Baliyo noticed. 

“Hey… Um sis…. You missed a bit.” He called out, rolling back onto his soft paws, the ground beneath him feeling warm, yet somewhat sticky from droplets of their pleasure, before he started to give chase to her.

“It doesn’t matter,” she called back “It’ll come off if we go through that patch of long grass on the way there.” Before disappearing down a slope, out of view of the male lion.

Bailyo just smiled, still trying to keep up with his sister but it didn’t matter if he was some distance off her, his worries where gone thanks to her. And besides, there was a “hole” new part of her which he hadn’t experienced yet, a place where his barbed pride hadn’t gone quite yet.

The end