XXX Blade (Kingdom Hearts) - Cover

XXX Blade (Kingdom Hearts)

Copyright© 2025 by sexdottxt

Chapter 3: Bond of the Blaze

Fan Fiction Sex Story: Chapter 3: Bond of the Blaze - While training together, Kairi and Lea talk about the past and future. Though Kairi realizes she is desperate to live her life to the fullest by doing all sorts of things before the final battle, and Lea is the first of her many partners to come.

Caution: This Fan Fiction Sex Story contains strong sexual content, including Ma/ft   Consensual   Teen Siren   Heterosexual   Fan Fiction   Cheating   MaleDom   Anal Sex   Cream Pie   First   Facial   Oral Sex  

Dear Sora,

I’ve been really progressing fast in my Keyblade training. Lea is an excellent partner. We were both kinda awkward at first, me way more than him! He’s more used to doing other things than fighting with a Keyblade, but now we’re really getting into things pretty fast. Each time we spar, I’m left breathless, it’s been hard to keep up at times. He has a lot more experience than me even though there’s still a lot we both have yet to get right. But it’s still a lot of fun! I can’t wait to see you again and show you what I’ve learned.

Their last day of Keyblade training just ended. The sky was turning to an orange dusk dotted with small pink clouds and the sun was just about to set. The warm air felt nicer on her since she had got her haircut. Kairi and Lea were both sweaty from all the exercise, but they were so glad for it to be over.

“You almost done there?” Lea said. She saw him in her peripheral vision. He had already started taking off his coat and his clothes underneath were clean now. That last bit disappointed Kairi. She liked seeing Lea shirtless during their first time, though that was nothing compared to all the times she had seen him naked. It was a week since he popped her cherry. And when their training sessions were over, all she could think of was his lean naked body under his clothes.

“Sure, I’ll be there in just a bit!” Lea flashed a wicked smile. When she didn’t immediately stop, he went over to her, rubbing his crotch, he was already hard. and started kissing all over her face and neck while feeling up her legs. She started giggling.

“Come on, what’s more interesting, writing a letter or getting some dick? D-I-C-K. Got it memorized?”

“I do have it memorized!” she said, blushing.

“You like it big and hot, right?”

“And it’s more salty than that ice cream you got me.” He reached a hand under her skirt and found her panties. They were wet as he expected. Impatient, he reached a finger past them and inside of her. She squirmed, dropping the letter and pen out of excitement at the touch of his fingers on her clitoris before she nervously came. Kairi had become extremely comfortable around Lea after their first time, and coupled with his natural good looks, she had no problems with him touching her as he pleased.

She had to catch her breath for a bit, that last orgasm was so sudden and good. “You like that?” he said, licking his fingers now sticky with her pussy juice.

“I ... I don’t know,” she said blushing.

Even after making a habit of doing it after finishing their daily training sessions, she was still at times unexpectedly shy around him. But when he took his wet fingers and put them to her face, she started licking them without a second thought. Then she looked away from the letter and right at his face.

He gave her a quick kiss on the lips and said, “Come on.” She nodded and holding hands, they happily sprinted into the nearby forest. They found a big tree with lots of soft moss nearby. He pushed her up against it, and she wrapped her arms around his neck for another heated embrace.

Having her Keyblade training partner as her lover was a bit weird at first. But she had gotten used to it.


The next day after Lea had gotten himself a tasty midnight snack of Kairi’s muff, Merlin gave them both a good morning as he always did. He didn’t act any differently around them, and didn’t say anything that indicated in the slightest of what went on just a few hours ago.

When they were alone in their training space, they were both smiling at each other. He remembered the sweet taste of her pussy in his mouth, it seemed like just minutes ago he was munching on her clit, and she was hit with butterflies in her stomach thinking about the orgasm she felt as he ate her out, her memories of the way he teased and tantalized her clit using his mouth in so many ways was getting her wet already. Without any words, the two embraced each other tenderly before their mouths met in a wet sloppy kiss.

Then much to Kairi’s annoynance, Lea pulled back. “Kairi, you’re amazing, but you know there’s a reason we’re here, right?”

“You mean you don’t want to do this anymore?”

“Of course I do! But...”

“But what?”

“But we should work out a schedule.”

“Alright...” She seemed disappointed hearing that, looking downcast.

“After we’re done training for the day, then we can have some fun,” he said, his mouth curling into a grin. She liked that idea too and cozied up to him a bit.

“But only then,” he said, pushing her back by her shoulders.

“Fine,” she pouted. He thought she looked cute like that. But at least it kept her from getting too distracted and focusing on a certain other task.

To both their surprise, they were able to actually concentrate and not even once mention anything related to fucking during the rest of the main day. It made them concentrate on their Keyblade training that much more. And Lea found himself on the ground again more than a few times.

Still, he found vindication once he started letting her win. She got overconfident and started to let her guard down so that when when the moment was right, he was easily able to hit past her guard and win for once. Not joking around anymore, Kairi took it seriously then, but by then it was too late. He knew all her moves and dodged them all easily before he knocked her to the ground again.

Thankfully, the day was done at this point. Lea wasn’t eager to find out if Kairi could be a particularly sore loser.

“I let you have those wins,” she said when he pulled her by the hand up off the ground. Lea snickered.

“Hey, if it makes you feel better. But I think I know all your moves now. I got them memorized. So try something new tomorrow.”

“How about right now?” she said, readying Destiny’s Embrace.

“Tomorrow,” he said, looking off in the distance at the darkening sky. He turned back to her in an instant and took her by surprise, grabbing her tits. Kairi yelped in surprise, and his greedy hands fondled her nipples under the fabric of her blouse, probing them until they were erect. “You still wanna train? Because I have something else in mind.”

“Well ... maybe I...” She couldn’t finish that sentence because he quickly shoved his tongue in her mouth. He pushed her down onto the grass and climbed on top of her. She didn’t object at all, rubbing her thigh up against his crotch. He was getting hard at that, and his hands moved to his pants, trying to get them undone. The fly open, he broke the kiss to gasp as her thigh rubbed against his erection in his boxer shorts, barely protected against the soft bare skin of her legs. He felt a hand yank his undershorts down and seize his hard phallus. The palm of her hand was still surprisingly delicate and free of calluses after all the tumbling of their training routine and expected roughness that came with using a Keyblade. Feeling her angelic touch on his bare dick’s sensitive skin was sweet as always, he could get used to doing this with Kairi on the regular, and hoped her enthusiasm would last throughout the rest of their training days.

Kairi turned around, grinding up against him. His greedy hands grabbed her breasts again and she in turn was easily able to reach behind her and find his dick. She rubbed Lea’s stiff member just a little under her skirt so that it was between her ass. The softness of her hands was one thing, but between her amazing donk was like living in another world entirely. He happily grinded his penis against her while he continued fondling her full tits, he would have been content with doing that alone.

While he was happily getting his rocks off and dreamily staring at the darkening sky, it shocked him a bit when she grabbed his wang and wedge it further in between her ass cheeks. He took initiative and drove it in further so that the underside of his dick was right up against her anus and felt her full naked buttocks massaging the sides of his penis. When he looked down and naughtily flipped her skirt over, he was pleasantly surprised to see that she was wearing a thong. Her full bubbly ass was barely held in by the thong.

“Like what you see?”

“Oh yeah.”

“You wanna do something bad to it, don’t you.” Not a question.

“Of course I do! I just didn’t think you were into that kinda thing.”

“I don’t know if I am or not. But I’d feel safe if you did it to me.” She paused then said, “You ever do this to anyone?”

“Just a few girls. I mean, I do like butts.”

“How about mine?” she said, seductively spanking herself.

“Oh yeah,” he said, pulling his dick free of her ass sandwich. He knelt down to feel it. He noticed that the strings of her thong were a blue as bright as a pristine morning sky and the fabric was a dull gold just a little darker than her skin. Just as he had done with her tits, he rubbed his face all over her bare ass cheeks. After getting a meal of her pussy last night, he was just as ready for the other end of her. He planted kisses along the soft texture, before he started slurping and sucking on her tender flesh. “I never thought I’d be doing this with you so soon.”

He pulled the thong down. Out of curiosity, Lea took in a whiff of her butthole, and it didn’t stink at all, she really was so simple and clean. He felt her hairless perineum and vagina with his fingers, her vaginal lips were swollen with lust and lubricated with juice as expected. He started licking her asshole a little bit, moistening it up with his tongue and tasting her. Tasted a bit of her pussy juice too. He was considering ignoring her request for his cock up her ass and instead getting another chowdown on that juicy twat of hers.

“You gonna drool all day or get to the point?” she said, snapping him out of his fascination with the beautiful clam in front of him.

“If that’s what you want,” he said, standing up and grabbing her hips. “Definitely getting this ass memorized.” He pushed his cock head onto her asshole. At first he was worried she wouldn’t open up so well, she had been a virgin until yesterday and had never put anything up her butt. But when he first pushed open inside of her, her anus surprisingly opened up easily for the head of his phallus.

To his credit, he was going at it as slow and gentle as he could manage. He knew it was her first time taking it up the butt and he didn’t want to hurt her. Though the tightness of her asshole was putting his patience to the test. Just like the rest of her, it was as sweet and welcoming as any guy would have loved.

When she didn’t protest, he pushed himself in a little deeper until the whole of his cock head was inside of her asshole. She started moaning a little bit, and started moving her hips slightly against him. Taking the hint, he pushed himself in a bit deeper, until his shaft was at a comfortable reach inside of her.

She had not stopped moving with him. Now that he saw she was comfortable, he also started pumping into her at a regular pace. Kairi started moaning louder as the two rocked with each other. She was moving so hard that her tits were slapping back and forth with each thrust.

Lea’s swollen balls hit her butt with each thrust as he pumped inside of her harder. He grabbed her hips to steady himself as the two rocked each other. He saw her look up a little at him, her cheeks were tinged red with pure lust and her tongue was shamelessly hanging out of her mouth, nothing so refined as would be expected of a Princess or Heart, nor nothing resembling Kairi’s usual expressions of compassion and wit. She slapped one of her boobs hanging out and he took the hint, letting go of her hips and fully grabbing onto her breasts.

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