Chris never agreed to her friends having the key to her apartment in the first place, but she never felt the need to take them back though.
Well, until now.

"To think we would all come to Yukine's place to hang out, what a serious coincidence." The idol, Kazanari Tsubasa announces as she walks in front of the others toward her kouhai, Yukine Chris, apartment.

"I'm actually more concerned that we might actually intrude onto whatever she is doing." The other idol, Maria Cadenzavna Eve, voices her concern.

"No worry Maria. Shirabe and I overheard Chris-senpai telling Hibiki-san she didn't plan anything for this weekend," the blond-haired girl; Akatsuki Kirika, answers.

"Also Chris-senpai has always time to spare for us no matter the circumstances." The twin-tailed girl; Tsukuyomi Shirabe, adds confidently.

"You two, overhearing her saying that she has no plan for the weekend doesn't mean she won't come up with anything later on," Maria argues with her two protégé.

"By the way, Kohinata. What about Tachibana?" Tsubasa enquires with the childhood friend.

"Right, I wanted to ask about her as well, is she feeling unwell or something? Seeing you without her is a rather rare sight," Maria joins her friend questioning Hibiki's whereabouts.

"You are saying that as if the two of us are joined at the hip," Miku answers jokingly, earning her a collective blank stare from the other and causing her to sigh in resignation at her lame attempt. "She actually left a while ago, didn't have time to ask where."

"Now that I think about it, Hibiki-san often disappear on us from time to time lately," Kirika comments.

"Maybe she had a boyfriend," Shirabe casually says to the group causing the tree oldest to stop in their track.

"A boyfriend? Tachibana?" Tsubasa questions.

"We would have noticed if it was the case." Maria justifies.

"She would have told me!" Miku retorts.

Silence spread between them as Kirika tried to diffuse the tension created around the Gungnir wielder. "Maria is right, if Hibiki-san had someone, we would have noticed by now."

"We could call her, asking where she is and with whom," Tsubasa says.

Miku shook her head at the proposition. "No need, I will just ask her directly when I see her later."

With the matter at rest, the group resumes their walk in the hallway, until reaching the door of their mutual friend's place, Tsubasa already pulling out her copy of the key she had received the moment her kouhai received her own as well as the news of having her own place.

"Shouldn't we ring the bell or at least knock before entering." Maria enquires, slowing the movement of her friend.

"We could, but it would not be much of a surprise if we do so," Tsubasa answers the pink-haired idol with a rare smile as she turns the key and pushes the door open.

Upon doing it, the group would obtain the answer to some of their questions. That Hibiki certainly didn't have a boyfriend as well as where, with who and how she was spending her time with. Though, Tsubasa as well as the whole group would regret their decision to seeing Chris today as well as not at least knocking first before obtaining these answers.

The very first thing entering the girls' field of vision was the 'missing' girl, Tachibana Hibiki, lying on the couch. Nothing wrong in itself at first, but her head hanging at the edge of it while moaning wantonly was a sight scarred in their brains.

They probably would have been able to pretend to have seen nothing, that if their feet weren't rooted to the floor and their eyes fixed on the girl, they could have stand back out of the apartment and closing the door before their presence could have been noticed.

Except they weren't that lucky, Hibiki happened to open her half-lidded eyes while they were still coming to terms with what was happening in front of them. Hibiki's eyes roaming at the upside-down sight displaying in front of her, recognizing the silhouettes until her blurry vision confirm that those weren't illusions, her muddle brain catching up with the situation, the afterglow of her orgasm quickly fading as the surprise followed by shock before settling for horror embarrassment register on her face.

"Fuck! Chris! Ahh! Stop, Chris there's someone…" the string of words cuts by moans flittering out Hibiki's lips were accompanied by her hands moving between her legs pushing a bob of silver hair from her neither region, her lover still unaware of their current situation was already working on trying to coax more moans of pleasure out of her with success.

Chris' head pulled away from her lover's core, strands of vaginal fluid linked her lips to the private parts she has been feasting, her chin shining with Hibiki's essence before licking it with her more than average tongue. "Come on Hibiki, You are usually the one not wanting me to stop after on-…" Chris' last word trailed as she catches what her secret, no longer secret, girlfriend was trying to tell her.

Her eyes landing on the groups of girls at her door entrance, observing from her senpai, to her girlfriend's childhood friend, to her two younger kouhais which eyes were covered by the foreign idol. She then looks back toward the girl who won her heart, covering her red face in visible embarrassment at the situation.

Chris' blood boiled instantly, she stood up from her position leaving a sprawled Hibiki on the couch, probably wishing that the earth would just open up beneath her and swallow her up whole. Her feet stomping at the floor as she lets her raw emotions run rampant, not caring about her disheveled state of attire or especially being bottomless in front of them.

"What the hell!? Is a text or a phone call that hard nowadays?!" She snarls at them.

Tsubasa put her hands in front of herself, attempting to calm her visibly more than enraged kouhai, while it's usually rather adorable to see Yukine's flustered face, a red-faced angry kouhai for justified rather is anything but. "Our apologies Yukine-" Her attempt to apologize was cut off as soon as she begins.

"Shut up! Saves your excuses for those who care because I certainly don't. Never mind not being warned, but not ringing the bell or knocking, you've got to be kidding me!" Her eyes then land on the item held in her senpai's hand; the key of her home.

The movement was swift, leaving the idol no time to react as the key was snatched away. Chris then turns toward the sole person to still having one, aside from her girlfriend, and extending her open hand at her. "Keys, now!" she commands.

It took a moment for Kohinata Miku to understand what was asked of her, but she rapidly connects the dots before fumbling with her attire to pull out the desired item before depositing it in the opened palm.

"That's pretty much why I didn't want any of you having this key in the first place, it completely removes any prospect at privacy with the way you most often than not allow yourself to come in and out. I am not okay with that!" She begins a tirade while pushing everyone toward the still opened door. "I should be able to walk around naked in my damn home if I want, inviting whoever I want, spending my time however it pleased me and that includes me wanting to eat out my girlfriend on my fucking couch!" She shouts the last part as she pushes the last person out of her apartment "Hibiki and I are spending the day together, and you're not welcome!" she ends her shouting by slamming the door shut and locking it once more.

Silence engulfs the hallway as the girls were left in various states of mild shock for some and worse for others.

Maria was the first to talk, letting her girls gain back the use of their sight. "Well, at least we know it wasn't a boyfriend she was spending time with." She then glances at the two youngest girls. "That what you overhead about Chris having no plan for the weekend, she was maybe discussing with Hibiki what their own plan for it would be for today."

"We certainly intrude," Tsubasa conveys with uneasiness, desperately trying to chase the mental image of the compromising situation she caught her kouhais in, barely able to subdue her own blush.

"We did," confirms Maria in a calm tone.

"But what the two were doing exactly, it the first time I heard Hibiki-san screaming like th-"

"It's too early for the two of you to know!" Maria cuts in her two girls' curiosity, she wanted them to be unaware of that for as long as possible, but this single occurrence will certainly lead them astray, stirring their minds into getting the answer in a way or another.

Maria sighs. 'I guess it would be better for me to explain them as soon as possible, the chance they ask Chris about are high and I can't really trust her in what she would tell them just get back at them or me after today.'

"Actually, I propose we leave," the foreign idol announces, "Chris left us off the hook for now and I don't think we should try our luck and waiting for her to change her mind as to how and when she wants to deal with us."

"Speak for you, Maria, you are not the one who goes to school with Chris-senpai on a daily basis or training with her," Shirabe replies with a resigned tone already dreading the next time she will encounter her senpais.

"And if Hibiki-san joins her in vendetta, our lives might very well be at stake, death!" Kirika follows in a panicked tone, her body shivering.

"While I would like to believe that Tachibana would not do such thing, I believe Yukine able of such a feat if given time and patience." The blue-haired idol expresses. "This situation is mainly due to my blunder, and I believe Maria is right in suggesting that we leave the area as soon as possible."

"You better, before I chase you down with throwing knife, or worse; Ichaival," Chris' warning voice echoes through the closed door.

No words were said as the girls scatter away from the area and toward the elevator, one of them had remained silent all the while.

Chris lets out a sigh as she heard the noise behind the door growing quieter. Her eyes then land on her girlfriend, Hibiki was still hiding her face with her hand, In the same state she was left since Chris stood up to tear into their mutual friends before throwing them out.

"They totally heard me, so embarrassing," the younger girl mutters.

"What's done is done, don't concern with this anymore, dummy." Chris casually replied.

"Miku was there too, now she knows that I've been hiding it from her."

"Well, we were hiding it from everyone, so at least she discovers it at the same time as the others," Chris says as she walks back toward her lover.

"How should we face them from now on?" Hibiki ultimately asks peeking through the hands covering her face to look up at her girlfriend.

"We did nothing wrong, they intrude on us without warning so they are at fault. Hell, I will even suggest that we pay them back for it."

"We don't really need to though," Hibiki replies, reaching out a hand toward Chris, catching a wrist and gently pulling on it.

Chris allowed herself to be brought down, kneeling on the ground, her face hovering above Hibiki's before giving her a gentle kiss. "We should, I'm the only one allowed to embarrass you." She gives her another kiss. "Also, I was not done with you, far from it."

Hibiki's face gets redder, a wave of happiness spreading inside her. "How about I return the favor first before we discuss on how taking revenge on them?" She counters, caressing the knuckles of her partner's hand before adding. "Except Miku."

Chris rolls her eyes at her lover wanting to spare her childhood friend from their revenge, but she easily relents, the poor girl will probably have a lot to think about for a while now, especially if her assumption that the childhood friend held feelings deeper than friendship for the now taken girl.

Chris smiles mischievously. "Glad you begin to catch up on how I think," she whispers in her ear before dragging Hibiki into her bedroom to continue their activity.