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"Hanabi, you-" Hinata stammered, not sure what to make of this. She was about to ask her sister just what had gotten into her. This behavior wouldn't have been out of the ordinary five years ago, but now it was...almost like a dream. But she decided to let it go for now. It was...nice for Hanabi to look at her like that again, to be so full of life and energy. It made the elder sister feel strangely nostalgic. "Yes," she finally said, stroking Hanabi's hair lovingly while biting back tears of happiness. "You got me."
After hanging up her towel, Hinata took a seat next to her sister and began to soap her body up. Starting with her left arm, she ran a hand up and down her ivory skin, coating it in a fine layer of suds, humming a quiet little song as she worked. And while she did this, Hanabi never once took her eyes off her. More specifically, she never took her eyes off of her bare chest. Hanabi had seen plenty of breasts before of various shapes and sizes. Many were even bigger than Hinata's. But what interested her about Hinata's breasts was how large they were compared to how young and small she was otherwise. Her figure had grown progressively curvier in recent years and was showing no signs of slowing down. It was now at the point where she almost looked like a miniature woman; only her round baby face betrayed her youth. Hanabi had seen many of Hinata's peers, like the pink-haired loudmouth with the short temper, the skinny blonde who often argued with her, the bun-haired brunette that usually tagged along with Neiji, and others. All of them were taller than Hinata and a little bit more broad-shouldered, but their boobs just couldn't hold a candle to hers. And if Hinata's breasts were this large now, who knows how big they would get in the near future?
Thinking about Hinata's rack made the younger girl look down at her own chest a little despondently. There wasn't anything going on down there yet. And while she knew that a girl's breasts naturally grew in with age, it somewhat frustrated her that hers just wouldn't come out. She was curious about boobs; she wanted to know how they felt when they jiggled freely, how they felt when they were confined in a mesh shirt or a bra, and more than anything else, how they felt to touch. And she didn't want to have to wait. She figured they must have been nice, for she would oftentimes see Hinata touch and play with her own whenever she thought she was alone, wearing the biggest and most adorable smile she had ever seen while making these cute little squeaks as well.
"Onee-sama," she asked as an idea began to form in her head. "Can I...wash you?"
"Of course," said Hinata, stealing a brief sideways glance at her sister. It was a harmless enough favor to ask, and she needed a little help soaping up her back anyway. She sat up and stretched to prepare herself for a nice back scrub, only to blink in confusion when she saw Hanabi kneel in front of her instead. "Hanabi, what are you-?"
Hanabi didn't wait for her to finish. She immediately reached forward, wrapped her soap-covered fingers around both of Hinata's breasts, and rubbed them softly. Like the rest of Hinata's skin, they were smooth to the touch, save for the little bumps of her pink nipples. But unlike the rest of Hinata's body, which was firm and taut with toned muscle, her breasts were notably squishy. Hanabi's hands almost seemed to sink into them as she pushed forward.
Hinata blushed. This was...not the kind of wash she was expecting. "H-Hanabi? Wh-what are you d-doing?"
If Hanabi heard her, she made no sign of it. She only continued to massage her older sister's breasts. She squeezed the round globes, marveling at how the flesh seemed to bulge slightly between her fingers and suppressing a giggle as she watched them bounce back into shape when she loosened her grip. She loved the way the flesh of Hinata's breasts seemed to ripple and bounce, which they pretty much did with every slight movement the older girl made. Hanabi smiled. These are really nice.
"H-Hanabi," said Hinata, who was now starting to take deeper and more labored breaths. "Y-you really shouldn't-"
After a while, a new sensation came to the surface. The nubs of Hinata's nipples began to feel harder in Hanabi's palms. It was almost like a couple of dull kunai were poking into her hands. Compared to the soft squishiness that surrounded them, they felt even more bizarrely out of place on the older girl's body. But surely that was just a trick. She was only feeling things, right? Hanabi slid her hands to the sides of Hinata's breasts to give herself a better look at her nipples. They were as pretty and rosy as ever, but they honestly looked as though they were poking just a little farther out than usual.
"Onee-sama, is this normal?" she asked, giving Hinata's right nipple a small pinch between her forefinger and thumb. It was definitely harder than before. What started off as a mere extension of skin was now almost like a pebble in a Zen garden.
"Wh-what is?" asked Hinata. She honestly had no idea what had gotten into the smaller girl, and this kind of behavior she was exhibiting was not only unlike her, it was highly inappropriate. But, and she hated to admit it, her hands just felt so good. It was difficult for her to think straight.
"Your nipples. They're hard," the younger Hyuga said completely matter-of-factly.
"Um," Hinata said, turning even redder and feeling a nervous drop of sweat on the side of her face. "Yes, uh, that's normal. A woman's n-n-nipples," she had to nearly cough the word out, "can...harden at time. Like...like when they get...cold."
"But they don't feel cold at all. They're pretty warm. Like the rest of you."
Hinata had absolutely no idea what to say. There was nothing unusual about Hanabi's questions. All children her age had this kind of curiosity. But Hinata was just not comfortable talking about these kinds of things with her own sister. Heck, she didn't think she'd be comfortable talking about it with anyone, save for maybe Kurenai. But it would still be embarrassing. And even if it wasn't, Hinata didn't think she was qualified to talk about this subject. She was just an adolescent genin. Couldn't Hanabi ask her personal tutor instead? Or an academy instructor? Or even her father?
"They're fine!" she insisted, hoping to nipple this matter in the bud. No, nip this issue in the nub! No bite this nipple in the-oh forget it! Hinata eyed the steaming water of the bath longingly. It was looking more tempting by the minute and a good dip would do wonders at clearing her head. "Th-thank you, for washing me, H-Hanabi. I'll...take it from here."
She gently shoved her sister away and picked up a bucket of water to rinse the soap off her skin. She bit back a sigh as she felt the liquid cascade down her naked body, from her hair that now clung to her head, in rivulets down the contours of her back, in between her buttocks, and along every side of her ample bosoms. They jiggled like always as the suds slid off them like a buttermilk waterfall, but her nipples remained firm, hard, and in the center of Hanabi's rapt attention.
