Chapter 2

Let's study Together

A/N: So sorry for the super late update! But I'm here now with a new chapter. I can tell that many of you wanted more of this. So, here it is~! Enjoy!

"Eh!?" Katsuragi exclaims, looking at the test Asuka received. "What is this? You need to redo the test and get over 50% to pass?"

"Well…that's to be expected," Ikaruga says, crossing her arms.

The blonde glares at her. "What do you mean expected!?"

The two older sisters sigh as they sit down with Asuka sighing louder than they were.

"I'm sorry, girls…" the dark brunette says. "Those questions were super hard…"

"I can kind of understand that," Ikaruga says.

"Hey! Don't agree with her!" Katsuragi says as she puts her hands on the table. "Listen, Asuka! You have to get it together! If not, you're going to get held back a grade!"

"Mm…you're right…" Asuka says with another sigh.

"I don't want that!" the blonde continues, taking her little sister's hands in hers. "There are many things I want to do with you." She then smiles. "If we work hard, we can still make it."

"Katsu-nee…"

"Hehe! Don't worry!" Katsuragi says. "Starting today, I'll do my best to help you study! I'll be your tutor!"

"U-ummm…you're…tutoring me….?"

"Mm-hmm!" Katsuragi nods happily.

"Now wait just a minute!" Ikaruga cuts in. There is fire in her eyes as she stands over the two. "It's not fair if it's only YOU…"

"Ikaruga, you may be the top student, but come on!" Katsuragi says, crossing her arms as well, frowning. "I can be smart, too!"

"At erotic fantasies and such?" Ikaruga asks.

"Ack!" the blonde shakes her head roughly and takes her little sister's hands again. "A-anyways! I WILL help Asuka pass through her redo test!"

"You will, huh?"

"Definitely! Just leave it to me!" The blonde pumps a fist to her chest with a confident smile.

**Asuka's Room**

"Ummm…are you paying attention?" Katsuragi asks as she taps her pen on the paper. "It's been only 10 minutes and you haven't written a single thing down."

"Yes, but…do you have to wear that outfit?" Asuka asks, looking up and down at her older sister's appearance.

Katsuragi is wearing a black office lady outfit with glasses and wearing black thigh high stockings with garter straps attached to a garter belt around her waist, that shine from the light in her room, black high heels. Her buttoned shirt is just a tad unbuttoned, at least from the top to expose half of her cleavage and part of her black bra. Asuka has found herself staring at her outfit since she came in.

"Hehe! I'm your tutor, remember?" Katsuragi giggles as she adjusts her glasses. "This will motivate you even more, right~?"

Asuka blushes, but slightly turns her head to hide it. "W-well…m-maybe, but…"

"Could it be that you like this type of stuff~?"

"Eh?" the dark brunette shakes her head roughly. "N-no! Not into that! Nope!"

"Fufu! Are you suuuuure~?" The blonde leans down closer toward her little sister, showing her exposed cleavage. Asuka tries her hardest to hold her nose.

"I-it's just that…you're a little different…than usual…" the dark brunette says.

Katsuragi brightens, blushing at the same time. She could take it as a compliment since she's acting a bit different from her usual perverted ways. However, the blonde can't resist wanting to show her perverted self again, but this is also about studying.

"D-do you…want to see?" Katsuragi says as she shyly lifts up her skirt.

Asuka looks on as the blonde slowly and carefully lifts up her skirt. But half-way up, she quickly puts it down.

"You can't right now," Katsuragi says. "You have to concentrate on studying. I'm…going to do my best as well!" She pumps up two fists with a confident smile.

"Katsu-nee…"

Asuka nods confidently. "Alright! Then, I'll go for it! Time to get serious~!"

"That's the spirit, Asuka!" Katsuragi cheers.

Unbeknownst to the two girls, Ikaruga sneaks up towards Asuka's room. She wants to see what's going on, so quickly and quietly, she makes it and opens the door slowly.

"So what you do for this problem is pretty simple…Hey, stop looking and concentrate," Katsuragi turns Asuka's head towards the paper.

"Right! I should focus!" Asuka says.

Ikaruga stares at the two with longing, wishing she was there with her little sister as well.

**Dinner**

"How's goes the studying?" Hanzo asks. "Are you making any progress?"

"I-I guess…" Asuka says with a nervous smile.

"Not to worry, Gramps~!" Katsuragi says. "I'm here with her."

"Heh, you know, Ika can help you study since she's the top student, right?" the gray haired elder man says.

"Hey…you're talking like I'm dumb again…" Katsuragi pouts adorably.

Hanzo laughs. "It's true. Asuka can learn something from your beautiful dark haired older sister, eh?"

"Oh! I got an idea!" Katsuragi says. "How about I cook you a special meal as reward for your hard work~?"

"Eh!?" Asuka exclaims. "Ah…not anything too special…really…"

Hanzo brightens, shaking his fist in the air. "That's the spirit, Kats! Rewarding your sister is a great way to motivate your little sister!"

"Alright!" the blonde cheers, pumping up two fists in the air. "I'm glad you think so, Gramps!"

Ikaruga slams her hands on the table, standing up. "Hey! I want to take care of Asuka, too!"

"You sure you can do that?" Katsuragi asks. "You're pretty busy with studies yourself, plus you pretty much do almost everything around the house."

"At least let me help her a little bit!" The dark haired girl argues.

Hanzo gives her a thumbs up. "Well said, Ika! That kind of attitude makes your grandfather happy!"

"No way!" Katsuragi presses. "I said I'll be taking care of her, that all! You have your own problems to take care of."

Hanzo just smiles. "Nice to see all of you future wives getting along so well."

"Future wives…" Asuka sighs. "What's with you, Grandfather…?"

**Asuka's Room**

"So to solve this equation, you have to take these numbers and…hey, Asuka are you listening?" Katsuragi frowns as she turns toward her little sister.

"Ah…y-yes, I'm listening…about these numbers right?"

"Haahhh….I know it's a bit late at night, but try to hold on a bit longer," Katsuragi says. She takes her cheek and turns her head towards her. "Come on, keep those eyes open."

As hard as she tries, Asuka can't seem to stay awake. Katsuragi grumbles as she lets go of her sister.

"If that's how it's going to be…" the blonde fully unbuttons her shirt, exposing her black bra. "Asuka~!"

The dark brunette opens her eyes upon calling her and when she turns around, she gasps, blushing at the sight of Katsuragi's exposed breasts.

"How's that~? Awake now?" she says with a giggle.

"K-Katsu-nee!?"

"Let's keep going for a bit longer…ne~?" The blonde winks at her with another giggle.

"S-sure…" Asuka doesn't know how long that's going to be, but she has to hold on until the very end.

**At School**

At the day of the test, Asuka looks hard at the paper. The problem she's working on is the exact one she and Katsuragi were working on. This will be a snap. However, when she tries to think of the answer, all that comes to her mind is Katsuragi's uber chest. She shakes her head roughly and tries again. However, all that pops up in her head is Katsuragi's chest and other sexy areas. She blushes heavily and hangs down her head. She's so not going to do well this time.

**Later**

Asuka and Katsuragi walk home together since Ikaruga has some stuff to do.

"You messed up again?" the blonde asks. "You can't remember a single thing?"

Asuka turns away, rubbing the back of her head. "Well…there were a couple things I remember…like…breasts and such…"

"I-I see…"

"I'm sorry," Asuka apologizes.

"No, no, it's my fault. I taught you the wrong way."

"It's not like that!"

Katsuragi giggles. "Weeell…let's think of a different strategy~"

**Asuka's Room**

The blonde shows up in her regular clothing, smiling.

"You're not wearing a suit?"

"Nope, but something even better~" the blonde walks closer to her and moves one of her straps of her tank top. On her right shoulder is the answer to the problem Asuka's been working on. "See? You're struggling with English, right? So, I decided to do this." She lowers her other strap, showing some writing on her right shoulder. "See? All the words here? I translated them from the workbook you've been studying. It should be simple, right~?"

Asuka is a blushing mess as she looks down lower at her right breast, which also has writing. "See if you can translate these, too~?"

"U-ummm…so you've written it…all over your body?" Asuka manages to ask.

"Of course! Since you pretty much remember my body, why not do this~?"

The blonde gently lowers her top down to expose half of her cleavage, showing some words on top of it. And then her left breast as well. Asuka swallows hard as she says the translations for each phrase.

"Good, good~!" the blonde says as she sits on the bed. She lifts up her skirt to show some phrases on her right thigh. "See if you can translate this one, too?"

Asuka nods and translates.

"Awesome!"

The dark brunette notices the phrase a bit down towards her panties. Curious, she reaches a hand towards where the phrase might say. "And this is…" However, when she touches her sensitive area by accident while translating, Katsuragi lets out a loud moan, startling her a bit. "Ah, I-I'm sorry!"

"I-it's fine…" the blonde pants. "Just…make sure to remember it…"

**Next Day**

Asuka walks to school, muttering the phrases she's studied with Katsuragi. She recites a few of them at the top of her head except for one that she can't recall. She shuts her eyes tightly as an image pops in her head of Katsuragi's right breast.

"I GOT IT!" Asuka shouts as she points her finger and gasps, realizing that she's pointing at the gray haired girl she saw before. "Uhhhhh…t-to love…you…" she mutters the phrase as she reaches to poke at the girl's left breast without thinking. The girl blushes heavily in embarrassment and covers her chest while dropping to her knees. "Ah! I-I'm so sorry!"

"A pervert!" some girls say. "She's a pervert, I tell you!"

"Asuka, she's got some nerve!"

"W-w-w-wait! You've got it all wrong!" Asuka cries as she waves her arms wildly.

"That's not fair, Asuka-chan!" Hibari cries. "If you want to grope someone, you can always…do me~!" She freely unbuttons her uniform, exposing her pink bra.

"Denied!" Asuka cries as she runs away into the school.

**At Home**

"Ah, so you passed your English test?" Katsuragi says, clasping her hands together happily.

"Mm-hmm," Asuka answers. "It was okay, but a lot of stuff happened as well."

"Well, studying is your top priority now~!" The blonde stands up and takes off her robe she's wearing. She is wearing nothing but her blue striped underwear with several writing all over her body. "Your next test will be history, right?"

"E-EEEH!?" Asuka looks up and down at her appearance with her face being totally red.

In the living room, Ikaruga can hear the two girls talking while she's reading a book. She glances up at the stairs and then back at her book. She's been pretty lonely for the past few days since Katsuragi started tutoring for for the tests. She puts the book close to her face while blushing.

"If only….if only I could spend as much time as Katsuragi…" she says quietly.

**Later**

Looking at the results of her next test, Asuka smiles while nodding in satisfaction. She has aced this one thanks to her older sister's tutoring. All of a sudden, three of her classmates walk up to her with some suspicious looks on their faces.

"Hey," one girl says. "You got 100% on it. That's not like you."

"Did you cheat?" the second one asks.

"Eh!?" Asuka waves her hands back and forth. "N-no…I didn't do anything like that…"

"Then how?" the third one asks.

"Well…I had Katsu-nee tutor me," Asuka answers truthfully.

"Katsu-nee? As in…the Katsuragi-sempai!?" Girl #1 exclaims.

"It's not like her for her to tutor you since she kinda gets low grades," Girl #2 says.

"But…our beloved Katsuragi-sempai has been tutoring you!?" Girl #3 says.

"Y-yes…" Asuka answers.

The three girls seem interested, so they lean closer to her.

"What lessons have you been doing?" Girl #1 asks.

"She must have taught you other things as well!" Girl #2 adds.

"That beautiful girl is your teacher now!?" Girl #3 says.

In their minds, they begin to fantasize what those two might be doing.

**Girl's Fantasy Mode**

"Hey, Katsu-nee, I don't understand this part," Asuka says.

"Let's see," Katsuragi looks over her shoulder as their cheeks touch, making them both blush.

Asuka turns toward her older sister, taking her hands in hers. "Katsu-nee…I want you to…"

Katsuragi nods. "Oh, Asuka…go ahead. I'll teach you everything I know."

Asuka pushes her older sister on the bed and the two make love…

**End of Fantasy Mode**

"Woooow~!" All three girls swoon.

"Hey, you did it didn't you?" Girl #1 says.

"N-no…I haven't," Asuka answers.

"Then, what kind of studying did you do?"

"Ummm…well…nothing special…" It wasn't exactly a lie, but Asuka does recall some of the things she and Katsuragi did for studying.

**Later**

Ikaruga is at the library, reading and studying like usual. She is by herself where no one is around and the library is about to close soon. She turns to one more page and reads, but all she can think about is her time with Asuka. Katsuragi is spending a bit too much time with her little sister on their studies, but on the bright side, Asuka is succeeding at it than she was expecting. Ikaruga looks back at her book, staring at the same page for a while. She is wishing that there is something she can do for her little sister that will be special. Something that will make Asuka happy.

**At Home**

Katsuragi reads the results of the test and nods. "Say, you did pretty well on your history. Nice job~"

"Thanks~"

"Then, I'll give you a reward for working so hard~" The blonde stands up and takes off her robe, revealing her birthday suit. "I'll teach you…everything I know." She lies Asuka on the bed after gently stripping off her clothes.

"B-but…we're…" Asuka starts to say, but Katsuragi leans down to kiss her tummy.

"Feel that~?" she coos.

"K-Katsu-nee…" the dark brunette starts again, but Katsuragi puts her finger to her lips.

"I'll tutor you on this," she whispers. "Don't worry…I'll be gentle…"

She leans in to kiss her and…

**Reality**

"WAH!" Asuka bolts up from her bed and pants a little. "Wh-what a weird dream…" She puts her hand on her head and sighs. "Katsu-nee's finally helping me study…what in the world am I thinking about!?" She shakes her head roughly. "I'm sorry, Katsu-nee…"

"Is something on your mind?" Katsuragi asks, startling the dark brunette.

"Eh!?" Asuka exclaims. "What are you doing here?"

"Sleeping beside you~" Katsuragi says.

"That's not the point. Why are you sleeping here?"

"I came to study, but you were sleeping."

"So…when did you get here?"

"Ahhh…about 10 minutes ago."

"So instead of waking me up, you wanted to have some fun?" Asuka dead pans.

"Haha!" Katsuragi laughs. "Who cares!? Let's start studying!"

Katsuragi sits on the bed with a book in hand. "Alright! Let's take a test!"

Asuka just gasps in surprise.

"You don't have to be so surprised," the blonde says.

"But…I'm doing tests at school…" Asuka says, rubbing the back of her head.

"That alone won't cut it! You got the mock exam this weekend remember? You've got to pull it together!"

"Ah….but I don't want to take tests at home…"

"Hmmmm…" Katsuragi mumbles as she rubs her chin in thought. "How about…I give you a reward if you pass? Ah, I know! I'll give you a kiss~"

"I-isn't this more like a punishment game?" Asuka says, but this sets the blonde off.

She could've sworn there is fire in her eyes and a bit of evil giggling. "So…you think this will be a punishment game instead….?"

"Ah! N-no! It's not like that! Please calm down, Katsu-nee!" the dark brunette cries as she waves her hands back and forth.

"Asuka!" Katsuragi says, gesturing her hand towards herself. "If you get one answer wrong…you'll have to kiss me!"

"Eh!? Th-there's no way I could do that!"

"You called this a punishment game, right?"

"W-well, ummmm…"

"If you hate it that much, just answer the question!"

Asuka swallows hard and nods firmly. Katsuragi asks the first question from the book and Asuka answers it correctly. Then, a couple more questions and Asuka answers them correctly once again. Katsuragi is impressed that her little sister remembers those. She nods firmly and hits her with another question. Asuka doesn't know that one and has to think about it for a moment, but due to Katsuragi doing "Tick tock" sounds, she is having a hard time. Then, the blonde gives out the answer.

"Hey, that's no fair!" Asuka shouts.

"Mm…this is a punishment game, so you have to get punished," Katsuragi says as she stands up from the bed, throwing the book aside. She walks towards her sister and brushes her hair away while putting her other hand on her chest. "It's been a long time…since we kissed like this? When was it…fourth grade perhaps?" The blonde caresses her little sister's cheek. "I'm…very excited actually." She then puckers her lips.

Excited she says… Asuka thinks. B-but…I can't…we're siblings…Ah! Why am I getting excited all of a sudden!?

"Don't hesitate, Asuka~" Katsuragi coos.

Asuka nods firmly. If this is a punishment game, then she has no choice. She cubs her hands on her older sister's cheeks, blushing heavily. "J-just this once…because it's a game…" she says softly. She leans in and connects lips with hers.

Upon kissing the blonde, they suddenly deepen the kiss to where their tongues meet and caress each other with soft moans being heard. Asuka has never felt such bliss before and doesn't know why. She finds herself moving her left hand and touching Katsuragi's breast a litttle and then groping it gently. They pull away with a string of saliva connecting from the bottom of their lips.

"N-no, wait…Ah!" Katsuragi moans as Asuka leans in to kiss her neck.

Asuka gets pushed away from the blonde, surprising her. The blonde looks away, blushing.

"I-if you go too far, I might get in trouble…" she says. "B-but if it's somewhere we can't be seen, you can do whatever you want."

"Katsu-nee…" Asuka walks toward her older sister, embracing her around her waist and pulling her close. They find themselves gazing at each other lovingly for some reason and neither of them know why. But all that's important is that they are here, alone with each other. "It's just a game, right?"

Katsuragi nods and closes her eyes while puckering her lips. However, just as the two were about to kiss, a pair of hands separate the two, pushing them away.

"Okay…that's enough," Ikaruga says.

"Ikaruga!" Katsuragi gasps.

"What kind of studying is this?" the dark haired girl glares at the blonde. "That I couldn't help with…"

"I-I'm so sorry!" Katsuragi apologizes while clasping her hands together.

"That won't cut it," the dark haired girl says.

"A-actually, Katsu-nee says this is just part of a game," Asuka says. She then notices a bowl being handed to her. "Eh? What's this?"

"I-it's your dinner," the dark haired girl says, blushing, but looking away to hide it. "I, ummmm…made it for you."

The food she made is just a simple bowl of soup, but with chicken and mixed vegetables. Asuka eyes the soup and smiles.

"Ika-nee~" she says.

"I-I don't know if it's any good, but if you want it…"

"Of course! I'll eat it!" Asuka blurts out.

Ikaruga gasps and turns toward her little sister as Asuka gladly takes the bowl. "Asuka~!"

"Thank you very much~!" But before the dark brunette can dig in, Ikaruga holds up a hand toward her face.

"Wait…"

"Eh?"

Ikaruga sits next to her, takes the bowl from her hands and scoops a spoonful. She then holds it towards her little sister with her other hand under the spoon. Asuka happily eats it.

"Delicious~!" she says.

"I-I'm so glad…" Ikaruga says, turning away to hide her blush.

Katsuragi turns away as well, but smiles. "That's my Ikaruga~!"

**Later**

Asuka walks in the house with a happy smile on her face. "Katsu-nee, Ika-nee! I passed!"

Katsuragi is the first to come out of the living room, popping her head out. "Really!?"

Asuka takes out the paper with the results, showing that they are all 100%. Katsuragi smiles.

"That's great, Asuka!" she exclaims.

Asuka runs toward her older sister and embraces her. "It's all thanks to you, Katsu-nee. Thank you."

The blonde blushes for a minute, but smiles at the same time. Ikaruga pops her head out and groans in disappointment. Katsuragi returns the embrace.

"That's great, Asuka," she says softly. "I'm proud of you."