Disclaimer: The following story is directed towards those with a tickle fetish, so it contains tickling. If you are somehow offended by tickling, this story is not for you. I own none of the characters.
It was a bright, sunny Saturday over the town of Otonokizaka, Japan, as the students of Otonokizaka High School were off for the day, as every other school was. Idol practice was also canceled for μ (Muse), leaving one girl in particular, Niko Yazawa, to do nothing but think as she laid across her bed, looking up at the ceiling. "No practice today..." The young girl groaned as she rubbed her crimson eyes, "That means I can't try and get those first years to like me more than that damn Eri..." She muttered under her breath, sitting up and sighing. With Niko's small, five-foot-nothing height, you wouldn't be able to guess she was actually a third-year student at the school. The small girl sighed as she stood up, looking at herself in the mirror as she ran a hand down her black hair, which was currently down as she smiled, "Silly me, I can't be saying such bad things under my alternate personality." She said with a giggle as she started to pace the room, "I need to think of some way to get those first years to come back to my side! To have them see me as a better idol!" Niko plotted, before stopping in her tracks, "No...that's not what I need to focus on, right now...I need to focus on getting BACK at that stupid, Eri..." The crimson eyed girl started to giggle, "Of course! I can't get those stupid first years away from her...so I just need to punish her!" She started to laugh, then stopped, "But how..." The long haired girl wondered as she paced the room again, "I can do anything too risky...she is the chairwoman's daughter...any wrong move and I'll get canned..." The small girl let out a groan as she laid on her bed again, "What can I do that won't get me canned..." She thought out loud as she ran her hands through her hair, then down her body, getting a small itch that appeared on her side. "Wait..." She stopped scratching, but left her hand by her side, beginning to lightly scratch it again, pondering her thoughts. Soon enough, her scratching turned into a light tickling on her own side, drawing no reaction, however. "That's it!" Niko called out, jumping up, "I can't get canned for a little tickling because it isn't against school rules! You're a genius, Niko!" She told herself as she let out a sigh of joy.
The idea was now set, however, she needed a plan. Niko knew more then well to just walk in and do the task that way...She needed to be stealthy...and that was her middle name. The young girl bent down, looking through her drawers for anything that could help her, "What do you use for that kind of thing? I mean...besides rope...and tools..." Niko scratched her head, before in the back of her very last drawer, she found a small bottle of chloroform, "Chloroform? Why on Earth do I have this..." She thought to herself, trying to think back as to why she possessed such a strange bottle. "Oh, I remember now! First year I was just going to kidnap people to get more people in my group!" She scratched her head, "Now, why on Earth would I do something like that...or anyone...that's just stupid..." The young Yazawa shook the thought out of her head, "Whatever...it's convenient for me..." She said as she stood up, looking back into the mirror at her small figure. "Now...Eri is always at school on Saturday's...and that big-breasted freak Nozomi leaves her at about 3...So I can strike then!" Niko grinned sadistically as she opened up her drawer, taking out her two red ribbons as she tied the first one into her hair, "Get ready, Eri..." She said, her voice going into a slightly deeper pitch as she tied the second one in, giving her the classic double ponytail look, "I'm about to make you laugh your little mature heart out..." Niko said with a giggle, "Now...I just have to wait a few hours...then the party begins..."
Back at the high school, two girls sat in an office with only one long, U-shaped table, which was filled with stacks of paper. One of the girls, a 5"3 tall blonde, brushed her hair, which was currently tied up in a ponytail by a white ribbon, "You heading out soon, Nozomi?" She asked as she turned to her friend with her sapphire eyes. Nozomi was a girl around Eri's height, but was much bigger around the chest. Her dark purple hair hung down her back, tied into two ponytails, and she had turquoise eyes. "Yeah, I think I'm going to head out." She said as she stood up, "Need anymore help before I go?" The busty girl politely asked as Eri shook her head, "No, thank you. I can handle the rest." Nozomi nodded as she packed up and headed out, before stopping at the door, "Oh, Eri?" Eri peaked up, "Yeah?" She asked as Nozomi smiled, holding up a small card that had a picture of what appeared to be a laughing sun, "The cards are telling me you're going to have a day filled with laughter." She giggled as Eri chuckled, "Sometimes...your cards are a little off...but I'm sitting here with a lot of paperwork...I'm definitely not going to have a day filled with laughter." The blonde haired girl explained with a smile as Nozomi winked, "Don't be so sure of that." She gave a wave as she closed the door, leaving Eri alone. Back at Niko's house, she grinned as her alarm went off on her clock, "It's time..." The young girl said with a giggle as she walked to her closet, "Now, I just need to put on my disguise.." She said as she pulled on a white shirt, then a long-sleeved black jacket, throwing on a pink scrap to cover her neck. Then, Niko pulled on a black skirt, and long thigh-high black socks, before slipping on a pair of black boots. Finally, Niko looked at herself in the mirror as she put on a pair of large red sunglasses, with black tinted lens to shield her red eyes, then finally placing a white surgeon's mask over her mouth, completely sealing her identity. Niko grinned under her mask as she grabbed a small white rag and the bottle of chloroform, placing it in a black bag, which was full of secret goodies for her plan. "Get ready, Eri...hope you're not too busy...because you won't be getting very much done after I'm done with you.." The young girl said with a giggle, leaving her house.
Eri sighed as she sat in the room alone, signing paperwork as she placed the sheet aside, "Day full of laughter...sometimes...you're crazy, Nozomi.." She quietly muttered to herself, grabbing the next piece of paperwork. "Sometimes...being the student council president has its downsides..." The blonde said with a sigh as she read down the paper, before signing it, "But..at least your mother is the headmaster..." Soon enough, a knock came at the door as she looked up, "Strange...I'm not expecting anyone.." The young president commented quietly as she called out, "Come in!" The door didn't budge as she sighed, brushing her hair out of her eyes, "You're losing it, Eri...focus on your work...you're more mature then to just imagine things..." She told herself as the noise soon faded from her mind as she signed the next piece of paperwork, a request for a new soccer ball for the soccer team. Another knock came a few seconds after as Eri sighed, "Come in!" She called again, this time a little louder. Once again, the door did not budge as Eri became suspicious, standing up and walking over to the door. She put her ear up against the door, trying to listen for anyone outside, but heard not a sound; the school seemed to be empty, just as it should be on Saturdays. Eri sighed as she opened up the door, revealing nothing there, "Alright, this isn't funny." She called out to nothing as she took a step forward. Before she could react, Niko came out from behind the door, placing the cloth over her mouth and pulling her back into the office as Eri struggled around, trying to break free. "Don't struggle." Niko told her, "It will only wear you out quicker." The president didn't listen as her eyes became darker, trying to pull the cloth away from her mouth, but it was too late, as the young blonde soon fell limp into Niko's arms, "I never thought I'd have to do that." She commented, giggling a bit, "But, man, did it feel wrong to do...Oh well...time to get her ready..."
Eri's blue eyes soon fluttered opened as she looked around her at the dark room she was now in. She groaned as she tried to rub her eyes, but found her arms bound high above her, grabbing what seemed to be a metal bar that was hanging off of the ceiling, her hands duct taped to the bar. Eri could barely move herself, as she was stretched out as far as she could go, the bar seemed to be placed perfectly to be just at that height to where her 5"3 height was pulled to its max. She looked down at herself, to see if anything on her was missing, but everything seemed to be there: her white buttoned up shirt, green bow, black blazer, blue skirt, knee high black socks, and her black flats. However, her black flats, along with her feet of course, were duct taped to the floor just as much as her hands were to the bar above her. "What is going on..." She thought out loud as a voice answered her from behind her, "It's time for your punishment..." Eri jumped a bit from the sudden voice, trying to turn herself around to see who it was, but couldn't seem to turn her head enough as the voice chuckled from behind her, "Don't try and figure out who I am...I am a mystery...and at the same time..you know me..." Soon enough, Niko, still dressed in her disguise, walked in front of her smiling as she opened up the blinds on a small window, giving just enough light to see the two of them. Eri blinked, "Niko?! What in the world are you doing?!" She demanded as Niko turned around, "That's who you think I am! But I am actually.." She pulled off her mask, then paused, "Wait...you said Niko? Well, you're right!" She said with a grin, pulling off her sunglasses. Eri smirked, "Who else would be that short?" She teased as Niko growled, "You're not in the position to be making jokes, Eri...I have you here for a very specific reason..." She said, starting to pace in front of her, "It is just not fair that you think you can come into this idol group and just steal these first years away from me with your 'beauty' and 'maturity'..." Eri blinked, "No...they look up to me because I'm the student council pres-" "Lies!" Niko cut her off, turning around and pointing a finger at her, her crimson eyes in a glare, "They only look up to you for the reasons I just stated. They ignore me because I'm not 'mature', I'm not 'trustworthy'..." "Weren't you also the one that tried to stop them for starting the group?" Eri questioned as Niko growled again, "Not as much as you did! And yet you're just the big role model of the group, even though you gave them the most negativity about the idol group because you're a 'professional dancer'...Well, I've had it, and it's time for your punishment." She said with a grin as Eri grinned back, "Do anything drastic and I can have my mother give you expulsion." Niko grinned, walking behind her into her blind spot, "That's why I'm not going to do anything bad...Are you...perhaps..ticklish, my dear Eri?" Eri felt a lump go in her throat as she quickly shook her head, "No...not at all...Why?" "Oh, don't lie...every girl is ticklish..." She said as she grinned, preparing to let the fun begin.
Eri shook her head again, "No...not me...I'm just different..." She promised as Nozomi ran through her head, "The cards are telling me you're going to have a day filled with laughter." "I didn't think you meant this..." She thought as Niko giggled, "Really? Because Nozomi used to tell us stories about how you told her about how your younger sister, Arisa, would always tickle you when she was bored." Eri bit her lip, knowing that was the dead truth. Her extreme sensitivity would always bee the cure for boredom to her younger sister, no matter how much she would tell her not to do it. "Now, you can tell Nozomi how I did the same thing." She said with a giggle as, without warning, her hands attack Eri's sides, causing her to yelp and burst out with ticklish giggles, "Hehehehehehen-nohohohoho d-dohohohohahahahan't." She begged as she did her best to squirm,which wasn't very much as she was still bound. "Nope, this is your punishment." Niko explained as her hands moved up to her ribs, causing her to become mixed with laughter and giggles." HAHAHeheheheheN-NOHAHAHAhahahath-therehahahaha." "You keep begging like it is going to change anything." The crimson eyed girl said with a sadistic smile as she moved up more, hitting her underarms, causing her to yelp and burst out with laughter, "HAHAHAHAHAHAN-NOHOHOHOHON-NIKAHAHAHAHAHA! NOHOHOHOHOHOT THEREHAHAHAHAHA!" The blonde begged as Niko grinned again, "Laughing that loud already and I haven't even taken your blazer off yet...You might go out faster than I expect.." The black haired girl thought as she continued at Eri's underarms, her obvious weakpoint as she could do nothing but laugh and twist only a bit, "HAHAHAHANIHIHIHIHIKO! WHEN I GEHEHEHEHET OUT OF HEHEHEHEHERE YOHOHOHOHOUR D-DEAHAHAHAHAD!" The small girl chuckled as she stopped, "Resorting to threats already? You're making this too easy.."
Eri panted heavily as Niko giggled, pacing around her trapped prey, "Tsk, tsk, tsk...The role model of the group is in such a predicament, isn't she?" Niko teased as Eri looked at her, her cheeks red from laughter, "L-listen, Niko...If you get me out of here...I'll make sure Kotori and the others listen to you..." The third year pondered on the thought, "Or..." She started, "I could keep you here for a while longer...possibly make you pass out...and stay as the back up idol. That sounds more fun." She said as she walked up to her, undoing the buttons on her blazer to reveal her white undershirt. "Oh...how I wish I could explore the rest of your nice body...but this is revenge...so your underarms are going to get hell." Niko said with a sadistic grinned as she lunged her fingers towards her underarms, causing her to squeal, but taking them back at the last second as she laughed, "Oh, this too easy!" The crimson eyed girl said with another laugh as she turned around, walking over to her bag and opening it up, pulling out an electric toothbrush and holding it up to Eri's face, causing her to gulp with worry. Niko giggled as she flicked it up, still holding it up to her face as she slowly, almost sadistically, moved it towards her left sleeved. Eri bit her lip and started to giggle with fear and anticipation, "HeheheheNiihihihihko please dohohohohn't do thihihihis..." She pleaded one more time as the brush was now directly above her sleeve, ready to be dipped into her bare, hairless underarm. Niko held it there for a second, pondering the idea, "Well...you're right...I don't have it do this..." She said, sounding as sincere as possible as Eri let out a sigh of relief, "So...you won't do it?" Niko looked at her, "Of all people...you were the last one I'd expect to fall for such a stupid bluff." The torturer explained as the toothbrush was dipped into her sleeved, going right up against her underarm as Eri went berserk with laughter, "HAHAHAHAHAHAHAHAHANOHOOHAHAHAHAHAHA D-DON'T AHAHAHAHAHAHAHAHAHAHA!" Eri cried, tears started to swell up in her eyes as Niko shook her head, "So weak...so easy to mess with...You'll be out in a few minutes..." She said as she started to move the brush slowly up and down, causing the poor blonde girl's laughter to raise more, "AHAHAHAHAHAHAHAHAHAHAHAH!" was now all she could say, her mouth no longer able to form stable words as Niko chuckled at the sight of her rival, now crying with laughter in her hands.
Five minutes into the torture from the toothbrush, once again without warning, Niko used her other hand to attack her other underarm, running her nails across her skin as her laughter skyrocketed, "AHAHAHAHAHAHAHANIHIHIKO! STOP! IHIHIHHIHIHIHI CAN'T BREHEHEHEHEHEHEHEHATHE!" Eri pleased as Niko giggled, "But your skin is just so smooth! I don't want to stop!" The girl teased her fellow idol member, drawing circles with one of her nails as the toothbrush was now resorting to circles in her underarms. No more words came out of Eri, just pure, unadulterated laughter that filled the small room they were in. Everything Niko was hoping for happened as Eri's laughter seemed to grow weaker, her struggling already long since over, "HAHAHAHAHAHAhahahahHAHAHAHAhehehehehe..." was the final sound before Eri's eyes shut, her body going limp once again in front of Niko as she turned off the brush, shaking her head, "Tsk, tsk...such a weak body...This took more time to set up then it lasted...Oh well...it was still a nice form of torture..." Niko said with a sadistic laugh, putting her tools away.
Eri gasped as she put her head up, looking around the room, "W-where am I?" She asked no one, soon seeing she was back in the office, paperwork still surrounding her. Eri scratched her head, "Was that it...was it a dream?" She asked as she looked down, her blazer still on her. The blonde girl sighed, running a hand through her hair, "What a nightmare..." She told herself as she leaned back, stretching her back out. Eri then stopped mid-stretch as she felt something press against her skin...something in the pocket of her blazer. She slowly reached into it, pulling out the same toothbrush that was used on her torture, "Dear God, no..."