Once she was left alone in the kitchen, Yuzu sat down on a chair, her face buried in her hands. What on earth was going on in Mei's head? The younger girl seemed to have undergone a transformation during the night. Yuzu sighed, unfortunately for her she could not even complain about Mei's attitude, in the end she had always hoped to see her sister more relaxed, more open…but Jesus this was too much. "I am looking forward to enjoying you alone". Yuzu gulped as she remembered her sister's last words. Was she serious? If yes, then Yuzu had to seize the chance and make the best of it, she had absolutely no intention of wasting another occasion like this.

Still, she felt unsure about Mei's health conditions. In all likelihood the girl was being affected by the fever and Yuzu should have taken care of her. She rose, silently moved next to the sink and started washing the bowl she had previously used, in an attempt to distract herself. As much as she didn't want to think about it, she couldn't help imagining Mei lying in the hot water of the bath. Her breath quickened as an image of her little sister waiting for her in the bed, completely naked, crossed her mind. She shook her head and grabbed a glass of cold water to clear her thoughts. This is not going well, I should try to be more responsible…I'm her older sister after all!

She started as she heard a loud noise coming from their room. Did she fall? Then another sound followed, less loud but still perfectly audible. What the hell is she doing? This whole thing was starting to stir up her curiosity, for some obvious reason she felt excited.

Unable to resist, she went upstairs, walking slowly as she tried to find the right words to tell Mei what she thought was best for both of them without hurting her. After all, she had decided to act as a sister and there was no coming back from that, or so she told herself.

The door of their room was slightly open, Yuzu placed a hand on it and pushed. Her eyes blinked twice before she came to accept as reality what she was seeing. Mei, covered by only a thin veil of silk was lying on the bed, her hair falling on her shoulder in a charming way. Her strong scent was hanging in the room, filling Yuzu's lungs and causing her head to spin due to its intensity.

Mei gazed at her, then smiled, a seductive smile which made Yuzu blush and her heart race. The blonde breathed deeply trying to get some oxygen back to her head, in vain as Mei's scent was too intoxicating for her to clear her mind. She felt her body lose balance and quickly placed a hand on the door, shutting it in the movement. Mei's dark eyes flickered; she seemed amused by her sister's behaviour. Yuzu felt her lower limbs grow hotter and less stable. 'You were serious…' she said in a barely audible whisper.

'Of course I am serious. I want you to properly take care of me, onee-chan,' she replied in a slightly childish tone. Yuzu felt a jolt run through her spine, her throat suddenly dry. She seemed to hesitate, trying to remember what she had planned to tell Mei about this. In her mind, she listed all the reason why they shouldn't be doing such a thing but her words never came out.

Noticing her hesitation, Mei's eyes narrowed, 'Yuzu, come here'. Her tone was firm but what made Yuzu actually move was the need behind her words, she could feel desire emanating from Mei. Everything that had held her uncertain until then seemed to vanish as she realised. She wants me too. She lied down, so close to Mei that she could feel the other's skin graze hers through their thin clothes. Mei turned her head, slowly caressing her collarbone before grabbing her shirt to possessively place a kiss on her lips.

Yuzu could tell, even though she didn't know why, that her sister seemed far too eager. There was a painful urge behind her kiss that made Yuzu wonder about her actions again. Nevertheless, she was human and she could not stay cool when Mei was kissing her in such a way. She responded to the kiss, parting her lips and welcoming Mei's tongue, she wanted to feel her taste, to let her feel hers…She moaned when Mei's teeth grazed against the soft skin of her lower lip. Then her eyes shut open as Mei bit her hard.

'This,' the younger girl said interrupting the kiss and placing a finger on Yuzu painful mouth. 'Is because you made me wait for so long'. She then leaned forward to resume the kiss, this time going deeper in an attempt to satiate her wild desires. She went lower, trailing the line of Yuzu neck, enjoying the taste of her skin. Yuzu was completely lost into her, to the point that she forgot to breathe.

'Mmm…Yuzu I didn't ask you to hold your breath'.

'Oh…' Yuzu blinked, a recent memory flashed into her mind and she blushed. Mei smiled, clearly aware of what had just passed though the blonde's mind.

'Recalling some pleasant memory?' Mei said biting her lobe.

'Ugh…Yeah…I mean I'm sorry that I didn't notice that you were so sick, I just took advantage of you'. And I'm doing the same now, more or less…

'Still, it was a...pleasurable experience'.

Yuzu's eyes widened, her mouth fell open and Mei took the chance to kiss her again. She entangled her tongue with hers, eliciting a moan from Yuzu. Mei's hand reached for Yuzu's shirt, unbuttoning it and swiftly taking it off.

'M-Mei…' Yuzu gasped.

'Yuzu, I know you want this too'.

'But Mei…we are sist…'

'Stop playing the act of my older sister, I know all-too well how much you are burning with the need for me, because…' she paused a little, her eyes turned to the side.

'Because?' Yuzu was eager to know, too afraid to hope. Mei didn't finish the sentence, leaving the answer hanging in the air. Her older sister, however, was too curious to just let it go. She gently blew right onto Mei's sensible ear, 'How would you know?' she softly whispered.

The younger girl bit down on her lip to stop a moan from escaping her mouth. She slowly turned to face Yuzu again, her eyes glittering. 'Because,' she said stressing the words a bit too much 'I feel the same as you'.

Is this a confession? It would seem so. Yet… 'Why were you always pulling off? Even now, why do you hide your feelings from me if you know I fully reciproc…'

Mei cut her speech quickly kissing her. 'That's the way I am,' she said sliding a long finger down Yuzu's neck until she reached her chest. 'Would you accept me for who I am?' Mei's gaze was intense and filled with emotions, so different from her usual look but still piercing as ever.

'Mei…I have already fallen in love with you. No matter what, I'm not letting you go'. Yuzu grabbed her wrists, locking their hands on the bed and leaned in to share a kiss. As soon as her lips touched Mei's, the younger girl felt a new kind of heat rushing through her veins. This time it was Yuzu who had made a move first, her eyes softened as pleasure filled her body. After a few seconds, the blonde appeared uncertain on how to proceed.

'Yuzu…' Her sister looked up, melting under Mei's gaze. 'Let my hands go'.

'Ah yes, sorry'.

'Don't apologise, it felt so good,' Mei replied, 'I'm dying here to feel it again'.

Yuzu blushed, 'Ah…' Damn I am really not so good at this. I have no idea what to do.

As if perceiving her insecurity Mei neared her head, so close yet not actually touching her mouth, her breath suspended below Yuzu's. The girl on top stared at her lips; it was as if they were telling her to kiss them, so red and ready. Yuzu eagerly complied to her silent request, a little bit too eagerly maybe. Mei's hands, now free wandered through her blonde curls as Yuzu deepened the kiss, her thirst increasing instead of diminishing. When she interrupted the kiss to gain air, Mei took one of her hands guiding her to her silk vest. 'Undress me,' she whispered with a tempting smile. Yuzu hesitated, only for moment though, her desire too strong to actually let her refuse such a heartfelt request form her dear little sister.

'As you wish, my little onee-chan'.

Mei's cheeks reddened hearing Yuzu call her like that. She breathed through her teeth as the other girl pulled her clothes off her head, exposing her bare skin to the cold air. The feeling only lasted for a mere second, though, before an hurried Yuzu placed her mouth on her breast, sending jolts through Mei's whole body.

The raven-haired girl arched her back, writhing under Yuzu's touch, her body instantly growing hotter. One of Yuzu's hand was now busy with her breast while with the other the girl was trying to get the panties off Mei. With a jerk of her hand, Mei helped her, finally getting naked. Yuzu paused for a moment to admire the girl beneath her, Mei's flushed skin, her parted lips, her hot gaze definitely turned her on beyond any salvation. She was at her mercy, whatever Mei had asked at that moment, Yuzu would have complied more than willingly.

'Yuzu'. Mei's hips slightly pushed upwards seeking for contact with Yuzu's. The blond-haired girl was still wearing most of her clothes and Mei definitely didn't seem too happy about that. 'Remove your clothes'.

Obediently, Yuzu lifter her back to unlace her bra, letting it come off her body deliberately slowly. Mei's dark eyes focused on her chest while her breaths became shorter. 'Yuzu…the rest…quickly…'

There was a subtle pleasure in watching Mei needing her so much that a smile sprang on Yuzu's face. She leaned down, her free breasts skimming Mei's skin as she placed a finger on Mei's lips in an imitation of her younger sister. 'Be patient'. Mei's eyes widened, she was surprised and at the same time extremely turned on by the way this was evolving. It was impossible to tell who was in charge, neither her nor Yuzu had a predominant role at that moment. Both of them looking to satisfy their own desires, yet both wanting to share their pleasure with the other. She silently watched as Yuzu left the bed, reaching the belt which circled her waist. Mei raised her eyes to the ceiling for a second; her sister was never wearing anything appropriate according to school rules. Then, she turned her gaze back to Yuzu's skin, she was craving to catch her with her hands and suck that sweet taste of hers. She really was hungry, after all, she had not yet had breakfast.

Yuzu noticed her darkened stare and grinned, 'Hungry, aren't we?' With a final movement she slid her panties away before going back to join Mei on the bed. As soon as she got closer, Mei couldn't resist and seized her body, making her hips twitch. 'Ah…Mei…'

'Shsh…' she kissed her swiftly, her hand going straight between Yuzu's legs.

'Mmeii…' Yuzu put a different note on each of the three letters of Mei's name.

'Yes, onee-chan?' Mei moved her hand just a bit adjusting it so that she could slide in and out of Yuzu more easily.

'Uh…I want to make you feel too…'

Mei blinked and halted her hand, this was news to her. The usually shy Yuzu was offering to pleasure her first. Mei licked her lips amused, this was turning out to be more enjoyable than she had expected.

'Sooo,' she started definitely taking her hand away from Yuzu who looked at her worried, her bravery faltering a bit. 'How do you intend to proceed?' She licked her fingers without lifting her gaze from her, 'I am leaving you carte blanche'.

Maybe this was too much of a concession because Yuzu frowned and started panicking 'I…I just meant…I really would love to…I have no idea what…what should I…' her ranting became confused after that.

'Would you like me to give you some advice?' Mei's voice was more husky than she had expected, she was visibly excited by the thought of Yuzu taking her, with or without her instructions. Yuzu on the other hand couldn't speak, so she nodded silently, her eyes fixed on Mei. The raven-haired girl guided her hand on her skin. Touching herself through the smooth curves of her body she let Yuzu explore all of her, shivering every once and then when she reached a particularly sensible spot. At some point Yuzu got her courage up and dared land a series of butterfly kisses on Mei's upper body, causing the girl to release a sudden moan of pleasure.

'Yuzu…I want you'. Mei was looking directly at her, her hand grabbed Yuzu's one placing it next to her burning core. 'I need you inside of me'. And with that said she waited, she didn't want to force Yuzu on that. Still, as the time slowly flowed by her need grew more and more painful. Yuzu limited herself to stare at her, her hand dead against her sister's skin. '…Yuzu…' This time there was more of an urgent need into her voice.

'Mei,' Yuzu replied, her eyes fixed on her. 'What should I do Mei?'

Mei's eyes opened wide in disbelief, it couldn't possibly be that Yuzu was so oblivious on what to do, could it? She had read all those yuri manga, for god's sake! 'What do you mean…?'

'I cannot make up my mind, if I should go so easily on you or spice things up, after all every time it's you doing this you usually take your time…'

'Yuzu,' Mei gasped. 'I have waited for this moment for longer than you can imagine…'

'And I have waited as well'. Yuzu lowered her head to talk directly into Mei's ear 'Mei'. Her tongue licked the soft skin. Mei started panting, her arousal being nearly unbearable without Yuzu touching her. 'What's up, President? You not enjoying this?'

'Yuzu,' her voice a rant, barely audible 'This is torture'.

'Mmm…torture? Not quite'. She slid one single finger inside Mei making the other gasp. The raven-haired girl tried to contain herself but a moan escaped her lips as Yuzu slowly pulled out the finger before reinserting it so excruciatingly slowly, flesh clutching against it.

Mei's hands automatically moved trying to catch Yuzu, but the other girl backed away. 'No touching,' she said, her eyes warning Mei. 'Keep your hands on the sheets'. It's already enough difficult without you distracting me. Just for once, I want you to feel it too. The same need I feel for you.

Strangely, Mei obliged her request grabbing the linens instead of Yuzu's hairs. However, she gave her a threatening look as she said, 'Make sure that this turns out to be satisfactory, otherwise I will have to rip you apart to quench my thirst afterward'.

Yuzu gulped, a faint smile appearing on her lips. It wouldn't be that bad either.

She quickened her pace just a bit, giving Mei a slight hint of relief, the raven-haired girl had closed her eyes by now, her hips following Yuzu's movements.

'Mmm…' She tried to keep silent, but it was a hard task considering how slowly Yuzu had decided to take it.

'Let me hear your voice, Mei, I love it'. Yuzu's breath reached her ear and Mei couldn't help herself.

'Aah…'

Yuzu smirked then placed a kiss on her lips. 'Good girl'. She then twisted her fingers inside her making her squeak. 'I want to hear you pleading for it Mei, I want you to cry my name with all the breath you have in your lungs'.

'Please Yuzu…' Mei was now close to climaxing, if Yuzu had stopped there she would have turned her to ashes with her look.

'Mei…' Yuzu's voice urged her, she slightly opened her eyes to look at her older sister, only to find that she was using her other hand to make herself come as well. Mei automatically reacted replacing Yuzu's with her hand, her pace a bit faster than the one Yuzu had used on her to make her come at the same time.

'Yuzu look at me'. The blonde lifted her head, her eyes confused by the strong emotions. 'Faster,' Mei said. 'Please,' she added after a bit. She felt Yuzu's heat increase of one full degree at least just by hearing her beg for more. Elated, she received more energetic movements. She was fully aware that Yuzu was close as well, so she kept her pace steady. 'Mei I'm...'

'Come!' Mei said. They both cried their names into each other's ears as their bodies were uncontrollably shaken by waves of pleasure. Yuzu's lips found Mei's in a deep passionate kiss as they both drowned into pure elation. Long silent seconds passed before one of them could speak.

'I loved it, we should do it more often,' was the first thing Mei uttered.

'Yeah skipping school is good,' came Yuzu's reply. She was surprised to hear such a thing from Mei. After what has just happened I shouldn't be so surprised, though.

'Not for your grades'.

Yuzu turned around to check if the coolheaded president version of Mei was back. But Mei merely stared back at her with an eyebrow risen. 'What?'

'Nothing President,' she said cuddling her.

'I shall make a rule,' Mei cleared her throat gaining a scared look from Yuzu. 'From now on, you are forbidden to call me "President" unless we are on school's grounds'.

Yuzu stared at her, unable to understand the reason for such a rule. Then realisation hit her and she started laughing. 'Why, President, does it turn you on?'

'Mmm you always seem so eager to receive my punishment Yuzu, you keep breaking all the rules'. Yuzu blushed, her heart racing again. 'But maybe now it's your time to finally shine'. Mei stopped, Yuzu held her breath. Is she going to ask me to have a go at it again, this time letting me do all on my own?

'…you can cook me something edible for breakfast since I'm starving,' Mei completed the sentence.

'O-of course,' Yuzu said getting up. Mei followed her.

'Ah. And another thing,' she added while fastening her shirt's buttons, 'You should address to me as your onee-chan when we are at home,' she smiled.

Yuzu face was as red as a tomato, Mei went further near her, 'I think you are acting well as an older sister, your performance has been so far…rather satisfactory'. She kissed Yuzu on her cheek before leaving the room, while her older sister was lost in an amazed state.