My Other Sister's Keeper Chapter 1

Story by Lost R on SoFurry

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#1 of My Other Sister's Keeper


TK/Gatomon Lemon

Kari... she was such a beautiful girl. To hell with cooties! TK daydreamed about how striking Kari was, the sister of his brother Yamato's best friend and rival. Before he had gone to summer camp and eventually the Digital World, he spent a lot of time over at Kari's house, playing with her and keeping her company. Ever since they discovered she was the Digidestined of Light, he watched her from a distance, but he never had the courage to approach her, let alone talk to her. He didn't discuss it with anyone else, either, not even with Patamon or Yamato. TK tried to build up the courage to talk to her, but with every attempt, the girl of his dreams was busy talking to the other girls or was otherwise surrounded by an audience of the rest of the Digidestined or Digimon. He wanted to be able to talk to her in private, away from prying eyes, ears, and peanut galleries.

Fortune smiled upon him after a few days in the Digital World. The rest of the Digidestined had gone ahead to fight off Piedmon's forces that had moved to intercept them while TK and Kari, the most inexperienced and youngest in the group, took refuge inside a nearby manor. This was his golden opportunity to confront her.

'Come on... just open the damn door!' TK growled in his mind, standing outside the door to Kari's room. Shortly after arriving, she went to lie down, as she was tired from walking such a large distance. Patamon and Gatomon meanwhile were patrolling the halls, making sure that no hostile Digimon entered the manor. TK spent this time building up the courage to confront Kari. It was time for him to bite the bullet...

With a frustrated growl, TK stormed away from the door to go brood in anger. He wanted to be able to confess his feelings for her, but he couldn't build up the courage. There had to be someone he could talk to about this...

"TK, please leave Kari alone!" a mature female voiced scolded behind him. TK turned around to find himself face to face with Gatomon. She had a stern glare in her eyes, which scared him, but he tried to reassure himself that she was just being protective of the 8th child.

"Oh! I'm sorry, Gatomon!" TK apologized. "I just wanted to talk to Kari."

"Kari is tired, and she needs her rest." Gatomon replied sternly. "Please don't disturb her."

TK nodded his head and was about to walk away, but he suddenly had an idea. Maybe he could ask Gatomon for help.

"Hey, Gatomon. Can I ask you something?" he asked.

"Sure. What is it, TK?"

TK took a deep breath before explaining to Gatomon.

"Well, I wanted to tell her how much I love her, and that I really want to be with her. I wanted to tell her for the longest time, but I've never been able to build up the courage to do so."

"Really?" Gatomon asked, drawing her head back in a combination of amusement and surprise. "And what do you want to do with her?"

TK tilted his head in confusion.

"Huh? What do you mean?" he asked.

"Well, what do you want to do with Kari?" Gatomon asked. "You want to be boyfriend and girlfriend? You want to play a game with her? Don't you even know what couples do together?"

"Uhh... no, I don't..." he answered truthfully. This response made Gatomon chuckle darkly. It seemed that he didn't know what couples did, or what he even wanted to do. She felt very compelled to take advantage of his naiveté. How bad could it be? She'd be teaching him a valuable lesson, she'd rope TK and Kari together, and she'd have a little fun on the side. Everybody wins!

"Well... do you want me to show you what couples do?" she asked.

"Sure!" TK answered.

"Ok, good! Now let's first find a nice empty room." Gatomon grabbed TK's hand and yanked him down the hallway, peering into each room, looking for the most suitable location. Nearing the end of the corridor, she found what she was looking for.

"In here. Quickly!" she said, pushing him through the open door. Inside was a bedroom that contained a queen-sized four poster bed draped with snow-white bed sheets. There were a few tables and chairs in the room. To the left of the bed's edge was a door that probably led to a walk-in closet. The room was perfect for Gatomon's plans.

"Ok, TK. Go sit down on the bed." The cat Digimon ordered, closing the door behind them. TK did as he was told and sat on the edge of the bed, Gatomon hopping up next to him.

"Ok, in order to do this properly, you'll need to take off your clothes." Gatomon instructed. TK stared at her warily, an automatic response gained from all those anti-rape seminars at school. However, he knew he could trust Gatomon, who wouldn't do anything to harm him. Slowly, he removed his clothes, first taking off his shirt, which caused his hat to fall off his head. Next, he kicked off his shoes and slid his pants down his legs. Gatomon sat back and observed, grinning as she took in the full view of TK's young body. Being nearly 8 years old, he had a small thin body. The two were nearly equal in size, with TK having about 3 inches in height above Gatomon.

TK blushed heavily and covered his crotch with his hands. The only other person to see him naked was his mom. Just what did being naked have to do with being part of a couple?

"Good boy!" Gatomon smiled, guiding him further onto the bed. "Now put your hands to the side, TK. Don't worry, I won't bite!"

The blonde boy nodded his head and placed his hands to the side. He felt very exposed, being naked like this. Gatomon smiled and moved closer, placing a warm paw on the small shaft between his legs. TK shivered, feeling the cold sharp claws gently slide along the bottom of his dick and up the length of the head. She gripped the erecting shaft and pulled down on the foreskin, pulling it back past the enlarging head.

"Nngh! Gatomoooon!" he moaned, spreading his legs further apart. He had no idea how Gatomon was making this feel so good, but he didn't want her to stop. Gatomon was pleased with how well TK was responding to this, which urged her to continue with her treatment.

The cat Digimon tightened her grip around TK's cock, now developing a steady rhythm in her pumping. The young boy moaned and gasped in her grasp, slowly humping into Gatomon's paw. He could feel something strong building up deep inside his body. It felt like his dick was on fire. Gatomon sensed that he was about to blow his load, and she quickly yanked back his foreskin and took his whole cock into her mouth. TK yelped in pain, feeling his foreskin pull back over his enlarged head, but it was quickly eclipsed by a spike of pleasure that rocked his body.

"MMNNN!! GATOMON!" TK screamed as he came. His dick throbbed with pulses of pleasure, and he could feel a thick fluid squirt into Gatomon's waiting mouth. She swallowed it eagerly, closing her eyes and moaning contently.

"Mnn, you taste wonderful, TK." She purred, licking her lips as she pulled away.

"Haa... haaa... what was that feeling?" TK asked.

"That's called an orgasm, boy. It's what happens when you have a good enough feeling in your dick." Gatomon explained, her eyes shifting between TK's face and his dick. "And by the looks of things, you're ready for Round Two!" she pointed at his dick, which was limp by the time she pulled out, but had now erected back to full length. TK winced as he felt a painful constriction just below the head of his dick. The foreskin was still pulled back, and its tightness proved to be rather uncomfortable for the young boy. His erect meat enticed Gatomon to keep going with this game. She pushed him onto his back and sat on his chest, slowly lowering her hips onto his lap. TK shivered as he felt Gatomon's furry pussy grinding against the head of his dick.

"Now it's time for you to pleasure ME." She purred, thrusting down into his shaft. TK's dick slid inside her pussy smoothly due to the whole length slicked with her saliva. Both partners moaned in pleasure, and TK wrapped his arms around the white cat.

"Purrr, oh your dick feels so good in me!" Gatomon purred, moving her hips up and down. TK moaned and clutched her tightly in his grip. He never felt so good before in his life! It was very hot inside her cunt, and he really liked the feel of her soft warm fur rubbing all over his bare skin.

"Ooohhh, I love how this feels, Gatomon!" TK cried out, humping back against Gatomon.

"Mnn! Play with my ass, TK!" the cat Digimon commanded.

"Huh?! Play with your ass?" TK asked, slightly disgusted at the idea of touching her butt.

"Just grab my butt and squeeze it!" She growled. While it was fun to take advantage of his innocence, having to hold his hand every step of the way was starting to get on her nerves, especially with her impatient hormones ravaging her body. TK didn't know why she wanted him to do that, but he complied from fear of the stress in her tone. His hands grasped Gatomon's butt cheeks, and he squeezed them tightly. The pleasure she got from this action made the cat Digimon moan louder and fuck TK harder.

"Nghh! AHH!" TK cried out. He came again, shooting huge loads of his young spunk into Gatomon's pussy. She could feel the slick fluid splash against the back of her womb. Even though TK was trying to catch his breath, she still rode on his shaft mercilessly, caring for nothing but her own pending orgasm. After several minutes of this, Gatomon growled and arched her back as she came, her pussy squirting sweet juices all over TK's lap. She rolled off to the side afterwards and breathed heavily. Her fur was matted down with a blend of their sweat and sexual fluids.

"Haa... haa... you were wonderful, TK!" Gatomon moaned, looking over at TK. The young boy sat up and mounted her. His cock was erect, and he wanted to feel good again.

"Ah! TK!" Gatomon exclaimed as he held her by the legs. He slid back into her easily as his dick was still slick with cum. He braced himself by placing his hands on either side of Gatomon's head, and he continued to fuck her small furry body.

"UGH UGH UGH! Gatomon!" TK grunted, thrusting his hips back and forth like a piston. Gatomon could do nothing but writhe in pleasure underneath him. Her body was still exhausted from the orgasm she had, and another one was building up.

"OH, TK! I'm gonna cum! AAUUUHHH!!!" she screamed as she came for a second time. TK was soon to follow, shooting even more hot sperm into her pussy. He collapsed on top of Gatomon, pulling her into a tight embrace. The two shared a passionate kiss, lost in the moment of bliss.

"Heh heh... so this is what couples do together, huh?" TK asked.

"Yep! Although, it doesn't always have to be couples." Gatomon explained. "It could also be between very good friends."

"That's good. I mean, I really like you, Gatomon, but I still love Kari."

TK rolled off her and rested next to her. Gatomon sat up and stretched like a cat before crawling around on the bed, wiggling her ass seductively at the young boy.

"Care to go another round, big boy?" she asked lustfully. TK nodded his head eagerly.

"Sure! Just... let me take a break first."