Warning! Someone's gonna have some sexy thoughts. It's only a few phases, and nothing too detailed. Just making sure.


This must be a stupid joke, Cassandra thought at first as her eyes widened in surprise. Am I seeing things, or is it just a bad dream? "Ms. Andersen? B-but h-how? And w-why?" She stuttered awkwardly, her smokey orbs seeming to avoid the sisters' gaze as she blushed and looked at the floor in embarrassment.

Elsa smiled at first, finding the student's shyness rather cute, then she mentally slapped herself. "Wait, you didn't know we are sisters?" Her voice was filled with laughter, yet she sounded startled.

The raven-haired girl gulped and lifted her gaze to look at the blonde. She blushed deeply and suddenly yearned for the quickest escape. I made a fool of myself. I basically told Anna how much I want to fuck her sister! But I can't help it; she's so attractive inside and out. I mean, I still don't know much about her, but I wish I could change that. "No, but I wish I did."

There was no point in denial: Elsa is a beautiful woman. Probably the most beautiful Cassandra had ever seen in her seventeen years of living. A part of her made her think of all kinds of things she read in romance novels, and the other part told her to grow up and stop drooling over the forbidden fruit. But Cassandra knew herself, and based on that, she was sure it's just a phase, or that's what she hoped, convincing herself.

Giggling a little, Elsa's voice softened as she noticed the blush on her student's face. "Well, now you know. If you guys need anything, just tell me. I'll be in the living room." She decided it's better to leave the girls alone since Cass is uncomfortable in her presence. A part of her wondered about the reason, but she quickly pushed the thought away.

"Actually, I was just about to leave," Cassandra said with a nervous chuckle as she rose from Anna's bed. "I-I need to buy uhh books for umm, my cat." She stuttered sheepishly and picked up her bag, almost rushing to the door where the teacher stood, lazily leaning against the wall.

Elsa giggled again as the girl approached her, and raised a hand to cover her mouth gently. "Books for your cat?"

Eyes wide in confusion, Cass tried to squeeze herself out of the younger sister's room, but Elsa put a hand on her shoulder and gently guided her back. It seemed as Cassandra's brain stopped working for a brief moment as Elsa's hand made contact with her clothed skin. She gulped audibly, and her body tensed a little, unsure of how to react to the unexpected action, but then she relaxed as she felt the slight tremble of the blonde against herself.

How surprising, Elsa is just as nervous as she is, and for an unexpected reason, it's making her feel a strange warmth in her heart. She allowed the teacher to lead her further inside the room, and then she dropped her bag to the floor, deciding it might be a good idea to stay for a little longer. She still hasn't finished studying with Anna anyways.

Within a blink of an eye, Elsa's hand was gone, her touch still lingering on Cass's shoulder as the young girl sighed in disappointment. Then Cassandra came to her senses and answered the earlier question. "Yes! I mean, no! It's cat food for my car! No, not car!" The student took a deep breath to calm herself. "I need to buy cat food for my cat, Hecate."

"I didn't know you had a cat." The blonde teacher commented.

Cassandra smiled in amusement, and Elsa immediately thought she has the cutest smile in the world. When the edge of her lips curled up, she had little dimples formed on either side of her slightly flushed cheeks. "She's a Maine coon, so she's a big one, but that doesn't mean she's not a softie."

"Like you?" Elsa asked in a deeper voice than she originally wanted, almost sounding like she wanted to flirt with her student. Anna had to put a hand in front of her mouth to prevent herself from laughing at her sister, but that only made the blonde feel even more nervous. "Sorry for disturbing, I won't bother you for any longer." The older woman quickly turned around and stormed out of her sister's bedroom, leaving only the lingering scent of her perfume behind.


"We need a break," Anna suggested, rubbing her tired eyes. They've been working for almost two hours, and it seems like she'll never understand one of the worst subjects in the world that made millions of students suffer each day. The other girl only nodded in agreement; however, a part of her just wished to take a quick nap. "How about some tea?"

"That would be awesome." Came the reply from Cassandra.

Anna smiled and rose from her bed with great enthusiasm. "Come one, let's go to the living room!"

For an unknown reason, Cassandra's heart stopped beating for a moment. Elsa said she would be grading papers in the living room, and the angelic part of Cass had no desire to join the blonde. But something inside her was still curious. It felt so strange, yet she wanted to get closer to her teacher to talk to her, touch her and reveal Elsa's true self, not just the schoolteacher side that she's showing to her every day in Arendelle High. It was like a pull that beckoned her to come closer while she fought against the almost magical force.

Together, the two girls left to join the older Andersen girl in the living room. Elsa seemed to be deep in thought as she graded her students' tests and failed to notice her sister and her friend's approach. The blonde jumped a little as the redhead hopped down next to her, while Cassandra took a seat at the opposite end of the couch, keeping a respectful distance.

"Hey, Els!" Anna greeted her sister, and with a swift motion, she wrapped her arms around Elsa's waist, hugging her. Sensing the close bond between the sisters, Cass smiled at them. She had a feeling about Anna and Elsa being close to each other, but seeing it this close, she felt a yearning deep inside her. She lost her brother when the little boy was only a few days old, and even though he was practically a stranger to her, the loss of him pained the girl. "We're just taking a break. Hope it's not a problem for you. Do you want some tea?" The redhead asked the other Andersen girl as she snuggled a little bit closer to her.

"Yes, thank you." And within a brief moment, Anna joyfully stormed inside the kitchen, leaving the two girls alone.

It wasn't bothering Elsa, no, and yet she still felt her own hands starting to shake. She had a weird feeling like someone was watching her. As she turned her head, she noticed Cassandra's gaze lingering on her body like a sneaky ghost. She expected the young girl to look away as soon as their eyes met, but Cass just kept looking, almost like she's daydreaming about something, or perhaps someone.

The blonde was unsure about what to do as she gazed into Cassandra's grey, magnificent eyes. It felt like looking into the girl's soul, her humanity, almost like she knew her fears and desires, the person she truly is. She saw fire in those orbs, the small spark of burning emotions, and Elsa was sure there's something her student's spirit, a deep and dark secret.

Cassandra smiled at her with a twinkle in her eyes, and that's when Elsa realized she's staring. She quickly turned back to her work, embarrassed and touched by what she saw. This feeling inside her wasn't like when they were in detention. Back then, she felt desire, and now, she's curious, she wants to know more about the teenage girl for some reason, even if it's inappropriate,

From the corner of her eye, she caught the student burying her fingers in her raven locks, and the blonde wasn't sure if Cass is doing this to her on purpose. Ms. Andersen wondered what it would feel like to tangle her digits in her student's hair as she's bringing her to entirely new, pleasureful places.

And that's when Elsa felt the way too familiar tingle between her legs, begging for a lover's touch. The blonde bit her lip as she held back a frustrated groan, her need growing each time she looked at her student. She didn't know why this keeps happening to her, but she blamed it on Cass. She's her student for fuck's sake! But Elsa couldn't help it, the ache in her core only kept growing, until she could barely hold herself back from fantasizing.

She wanted to know how it feels to have Cassandra's lips pressed against her skin, teasing her until she's a begging mess, and when the girl is pleased with her pleads, she will give her one last, tender kiss on her lips before descending on her slender body. The raven-haired girl would undress her gently, her fingers featherly brushing against her as she takes off each piece of her clothes until she's left in nothing, laying on the couch completely bare in front of her student.

Then Cass would travel her kisses between the valley of her breasts before capturing an already hardened nipple with her mouth, gently sucking and rolling her tongue around the nub as Elsa moans in response. And that's when the blonde would bury her fingers in that beautiful black hair to prevent those lips from escaping.

Cassandra would look up at her with those fascinating eyes of hers before releasing Elsa's nipple much of her disappointment, and adventuring even lower for her liking. Peppering her belly with open-mouthed, burning hot kisses, Cass wouldn't stop until she reached her wet, mouth-watering target. By this point, Elsa's core would be dripping with need, her arousal reaching a whole new level, begging the student to just pleasure her teacher already.

But Cassandra is a tease, a sinful, and rough tease. She would spend minutes licking and biting Elsa's inner-thigh, waiting for the blonde to squirm and beg to be fucked, to show her who owns her. Elsa may be older, but Cassandra is the one in charge.

Wasting no more time, Cass would bury her face between the blonde's legs, making Elsa cry out and then moan in pleasure as she parts her with her tongue, the firm, wet muscle sliding along her slit with ease to circle around the bundle of nerves. But it would only last for a brief moment until the student looks up and ask a question.

"Do you want sugar or honey in your tea?"

Elsa had no idea why Cassandra would ask that, then she mentally slapped herself at the realization. It was her sister questioning about her the earlier mentioned tea, and suddenly the blonde didn't know whether to hide or laugh at herself. "Honey."

Everything seemed absurd as Elsa took one last glance at Cassandra, who was already doing God knows what on her phone, innocent and unbothered. A sigh fell from the blonde's lips as she gripped the couch under her hands until her knuckles turned white. This whole thing is ridiculous. It has to stop.


A/N: Elsa is getting hornier with each chapter ngl.

Sorry for not updating for a little longer than I usually do. Hope you liked it!