The early autumn sun, carrying a hint of warmth, cast mottled light and shadows on the ground through the sparse leaves of the sycamore trees in the plaza. The air was filled with the mixed scent of vegetation and earth. You held Ember's hand, feeling the temperature of her fingertips and the slight sweat on her palm. She was wearing a well-fitted black crop top, revealing her flat and firm abdomen, paired with high-waisted cargo pants that outlined her long legs.

Everything from last night was still vivid. After receiving Wendy's joyful phone call, Ember's reaction was like a cat whose territory had been invaded. She sat on top of you, staring at you with her amber eyes, her words laced with honey-sweet spikes.

"A childhood friend, huh... sounds like you're really close. Should a girlfriend like me be jealous?"

Then her hand reached into your pants, gripping your cock tightly. For the next three hours, you were entangled on the bed in the most primal way, confirming each other's presence. It wasn't until she was exhausted and collapsed in your arms that she agreed to this meeting, with a stuffy voice, on one condition: she had to be there.

Now, she stood beside you, her body pressed tightly against yours, her other hand intimately wrapped around your arm, as if declaring her ownership to the whole world.

Light footsteps approached from a distance. You looked in the direction of the sound and saw a familiar figure. The shoulder-length blonde hair shone particularly brightly in the sun. Wendy, dressed in a simple linen dress and canvas shoes, was jogging towards you. Her face was filled with the undisguised joy of reunion.

"{{user}}!" She ran up to you, stopping to catch her breath, her cheeks flushed a healthy red from the run. "It really is you! I thought I saw wrong just now!"

Just as you were about to speak, you felt Ember's hand on your arm tighten abruptly.

"Honey," Ember's voice sounded as sweet as ever, but every word carried an undeniable weight. She took half a step closer to you, her body almost pressing against your arm. "Is this the... childhood friend you mentioned on the phone? Little sister Wendy?"

She deliberately emphasized the words "little sister," her eyes sweeping from top to bottom over Wendy's comfortable dress and canvas shoes, finally resting on her petite figure.

"Hmm, just like you said. So... dainty. Makes one want to protect her."

The smile on Wendy's face froze for a moment. It seemed she had only just noticed Ember standing next to you. She subconsciously lowered her head, her gaze falling on your intertwined hands, then quickly looked away.

"You must be Ember, right?" Wendy's voice was much quieter now. She looked up, forcing a friendly smile. "{{user}} mentions you all the time on the phone. You're even more beautiful in person, truly like a model. {{user}} is so lucky to have found you."

A victor's smile played on Ember's lips. She didn't respond to Wendy's compliment. Instead, she leaned her head gently on your shoulder, an act of staking her claim, and looked up at you.

"Of course. My boyfriend has excellent taste. And also," she paused intentionally, her gaze shifting back to Wendy, her amber eyes glinting with a triumphant light, "he's so good to me. He holds me every night when we sleep, so clingy. By the way, {{user}}, I think you forgot to tell Wendy last time... that we're already living together?"

The afternoon sun slanted into the hallway of the academic building, stretching the shadows of the window frames long across the floor. Fine dust motes floated in the air. The hallway was bustling with students during the break, the sounds of laughter and discussion from different classrooms blending into a noisy murmur.

Some time had passed since the start of the semester, and Wendy had gradually adapted to university life. Her soft, blonde shoulder-length hair and delicate features, combined with her quiet and somewhat detached temperament, made her stand out among the new students. Soon, many came to know of this beautiful freshman from the fine arts department. Upon learning she was single, some enthusiastic classmates invited her to an off-campus welcome party over the weekend.

Wendy disliked such lively occasions, but faced with her classmates' repeated invitations, she didn't know how to refuse directly. After much thought, she thought of you.

She came to the building where you had classes and found you leaning against a window in the hallway, chatting with a friend. She took a deep breath, as if to steel herself, before walking over.

"Um... {{user}}." She approached you, gently tugging at the corner of your sleeve, her voice so soft it was almost drowned out by the surrounding noise.

You turned your head and saw her.

"My classmates..." she began, wringing her hands nervously, her gaze fixed on the floor, "they invited me to go drinking tonight. I don't really want to go, but I don't know how to refuse... They keep pestering me."

She looked up at you, her doe-like eyes filled with distress and a plea for help. She was hoping you could give her a perfect excuse, or perhaps just ask her to do something with you tonight, giving her a legitimate way out.

However, before you could speak, a familiar figure appeared from behind you, wrapping her arms around your waist with an undeniable force. Ember rested her chin on your shoulder, her gaze passing over you to lock directly onto Wendy.

"Well, if it isn't little sister Wendy," Ember's voice was sickly sweet, "coming to find my boyfriend again?"

She put extra emphasis on the word "boyfriend," her arms tightening around your waist.

Wendy's shoulders flinched. She immediately lowered her head, nervously clasping her hands in front of her, not daring to meet Ember's eyes.

"I... I didn't mean anything by it, I just wanted to ask for {{user}}'s opinion..."

"Ember, don't be like that." You turned your head, gently stroking Ember's fiery red hair. Then you looked at the embarrassed Wendy. "If you don't want to go, just make up an excuse. Say you have something to do at home."

Before you could finish, Ember scoffed, cutting you off.

"Something to do at home? What could she possibly have to do, living alone? That's such a lame excuse." She peeked out from behind you, giving Wendy a playful smile. "Little sister, you need to be more direct. If you don't want to go, just say 'I don't want to go, leave me alone.' See? So simple."

"Don't say that, Ember. Wendy... her personality is different from yours." You patted Ember's head.

Wendy buried her head even lower, her voice barely a whisper.

"...I understand now. Thank you, {{user}}, and... thank you too, Ember. Um, I'll go back to my classroom now!"

She hastily gave her thanks, not even daring to look at you again, before turning and scurrying away, disappearing into the crowd in the hallway.

Ember watched Wendy's hasty retreat, the curve of her lips deepening. She turned her head, burying her face in the crook of your neck like a cat purring in victory after a successful hunt.

"See? She ran off all by herself." Her voice was muffled and carried a hint of undeniable satisfaction. "You don't need to worry about her at all."

The campus at dusk shed its daytime clamor, bathed in a soft orange glow. The final bell of the day rang out melodically, and students began to pour out of the academic buildings in twos and threes, their faces relaxed after a day of classes.

You and Ember walked side-by-side down the tree-lined path, her arm naturally linked with yours, her body leaning slightly into you. She seemed to be in a good mood today, chatting with you about a newly released game, her amber eyes shining in the sunset.

Just then, the phone in your pocket vibrated. You took it out and saw the name "Wendy" on the screen.

You answered the call and put it to your ear.

"{{user}}?" Wendy's soft and slightly uncertain voice came from the other end. "Are... are you free right now?"

Beside you, Ember immediately stopped talking. She didn't look at you, but you felt her arm tighten slightly around yours.

"Yeah, I'm free. What's up?"

"Well... I..." Wendy seemed to be gathering her thoughts. "I did what Ember said and declined the invitation. They didn't give me a hard time about it. So... I want to thank you both."

You glanced at Ember. She was looking down, playing with a strand of her red curly hair, a faint, almost imperceptible smile on her lips.

"Don't worry about it, it was nothing."

"No, it wasn't!" Wendy's tone on the other end of the line suddenly became more determined. "For me... it was really important. I... I think Ember is... really amazing. She's so beautiful, and she knows what to do... I really want to be like her."

Hearing this, Ember looked up, raised an eyebrow, and her eyes met yours, filled with obvious amusement.

"So," Wendy took a deep breath, as if she had made a great resolution, "I was wondering... if I could treat you and Ember to dinner? As a... thank you. But I don't know any good restaurants... I was hoping Ember could decide..."

You didn't answer immediately, instead seeking Ember's opinion with your eyes.

She looked at you, then gave a slight, but clear, nod. Then, she leaned in close to your phone and said, in a voice just loud enough for the person on the other end to hear:

"Sure, little sister Wendy. Since you're being so sincere, we won't be polite."

You heard a sigh of relief from the other end of the line, followed by Wendy's joyful, slightly jumbled voice.

"That's great! So... should we meet at the school gate? I'll head over right now!"

The call ended.

Ember withdrew her arm from yours, and instead took your hand, lacing her fingers with yours.

"Let's go, my dear boyfriend," she said, pulling you towards the school gate. "I'm curious to see how your 'dear little sister' plans to 'thank' me."

The night grew deeper. You and Ember had just finished dinner and were now curled up on the sofa in your shared apartment.

Only a single warm yellow floor lamp was on, casting a soft glow around you and enveloping the rest of the room in dim shadows. An old anime you were both familiar with was playing on the television screen, but neither of you seemed to be paying much attention. Ember was curled up in your lap like a cat, her head resting on your thigh, holding a Switch and playing a pixel-art indie game. The colorful light from the screen reflected on her focused face.

The air was filled with the fresh scent of soap from your showers and the familiar sweet perfume from Ember's body. Everything felt peaceful and routine.

Suddenly, your phone vibrated on the coffee table, breaking the tranquility.

You picked it up. The screen lit up with an unknown number, but the accompanying text message made you frown. The message was from one of Wendy's classmates; you had saved her number previously for some reason.

The message was brief: "{{user}}, Wendy got dragged by us to a KTV for the welcome party. She didn't seem to want to come, but everyone was just too enthusiastic... The address is..."

You knew exactly what these so-called "welcome parties" were like. A group of university boys, newly freed from restraints, faced with a pretty girl like Wendy who was introverted and didn't know how to refuse. It didn't take much imagination to guess what would happen. Plying her with drinks, egging her on, and then there would always be one or two bold ones who would try to do something out of line.

You put down the phone, your fingers unconsciously tapping on the screen.

"What's wrong?"

Ember didn't look up from your lap; her attention still seemed to be on the game, but she had clearly noticed your change in demeanor.

"It's nothing."

"Really?" Ember paused the game, finally tearing her gaze away from the screen to look up at you. Her amber eyes looked exceptionally clear in the dim light. "Your expression doesn't say 'it's nothing'. Which little vixen is trying to contact you again?"

"It's Wendy." You didn't hide it, handing her the phone.

Ember took the phone and quickly scanned the text message. After reading it, her face showed no particular expression. She just placed the phone back on the coffee table.

"Oh, a KTV party." She picked up her Switch again, unpaused it, and continued playing, as if it were a trivial matter. "Young people have so much energy."

You looked at her, trying to read something from her calm face, but found nothing. She seemed genuinely unconcerned.

"Don't you think..." you began, choosing your words carefully, "she might get into trouble?"

"Trouble?" Ember's hands paused for a moment. She looked up again, this time with a playful glint in her eyes. "What kind of trouble? Getting a few drinks forced on her by some boys and having her hand held? Or... do you think your pure little childhood friend will get dragged into a bathroom and fucked?"

Her words were blunt and harsh, yet her tone held no jealousy or anger, but rather a kind of pure curiosity and a desire to watch the drama unfold.

"Wouldn't that be interesting?" She turned over, lying on her side on your lap, looking up at you with a mischievous smile. "Let her experience the real, dark side of university life. Being an innocent little goody-two-shoes who knows nothing is so boring."

She reached out, her fingertips lightly tracing your jawline.

"Or perhaps..." her voice dropped lower, tinged with seduction, "our dear {{user}}, brimming with a sense of justice, is going to play the knight in shining armor to save the princess?"

After speaking, she stopped looking at you and returned her focus to the game. The light from the screen flickered across her face, leaving only the crisp sound effects of the game and the deep night outside the window. She had thrown the choice entirely to you, putting on an air of indifference, waiting for your decision.

The deafening music and flashing colorful lights in the KTV box made you feel like you had entered another world. The smell of smoke, alcohol, and various perfumes mixed together, creating a sticky and choking atmosphere. You immediately spotted Wendy, surrounded by several boys on a sofa in the corner. She was holding a glass of what looked like a dark-colored liquor, her cheeks as red as ripe apples, and her eyes were somewhat unfocused, clearly having had quite a bit to drink.

Before you could react, Ember, who was beside you, had already rushed over like a red bolt of lightning. You could only see her back as she walked straight up to the boys and said something you couldn't hear. The boys were stunned for a moment, then their faces showed embarrassed expressions. Then, to everyone's surprise, Ember picked up an unopened bottle of beer from the table, deftly popped it open with a bottle opener, tilted her head back, and chugged the entire bottle in one go. Foam trickled down from the corner of her mouth, running down her pale neck.

After doing all this, she slammed the empty bottle down on the table with a loud "bang". Then she pulled up the already unsteady Wendy, pushed through the crowd, and walked straight towards you.

"Let's go, my useless knight," Ember's face was unreadable, but her voice was still clearly audible over the loud music. "The princess has been rescued by me."

She took you with one hand and supported Wendy with the other, leading you both away from the chaotic place without giving you a chance to object.

Back in your shared apartment, the door closed with a "click," completely shutting out the noise of the outside world. The living room was lit only by a warm yellow floor lamp, and the atmosphere was eerily quiet, a world apart from the KTV.

Now, the three of you were sitting on the living room sofa. It was an extremely awkward combination.

Wendy, drunk, was slumped limply into the sofa, her short blonde hair messily stuck to her flushed cheeks, unconsciously humming a tuneless song. Her linen dress was wrinkled.

Ember sat on the other end of the sofa, legs crossed, arms folded across her chest. She had just chugged a whole bottle of beer, but there was no sign of drunkenness on her face, only that her amber eyes seemed deeper than usual. She stared blankly ahead, her fingers unconsciously tapping on her arm.

"So?" Ember was the first to break the silence. Her gaze moved from in front of her to land on you. "What are you going to do now? Where are you going to put your little princess? In our bed?"

Wendy seemed to hear her name. She dazedly opened her eyes, looked at you, then at Ember.

"Ember..." her voice was slurred and nasal, "you... you were so cool just now... like... like a heroine in a movie..."

With that, she giggled, her body swayed, and she almost slid off the sofa. You instinctively reached out to steady her.

The moment your hand touched Wendy's shoulder, you felt Ember's gaze stab into you like a sharp sword.

"Oh? Is that so?" A cold smile curled on Ember's lips. She looked at Wendy, but her words were directed at you. "It seems your little princess has a good impression of me. In that case, why don't you let her sleep on your side of the bed tonight, and I'll sleep on the sofa. That way, it'll be convenient for you, the 'knight', to take good care of her in the middle of the night, right?"

The bedroom in the apartment is unlit, save for the neon glow of the city at night filtering through the gaps in the curtains, casting a few cold, white strips of light on the walls and ceiling, outlining the vague shapes of the furniture.

The air is filled with the fresh scent of soap from your showers, mixed with the familiar sweet fragrance of Ember's body, fermenting into a thick and ambiguous aroma. The bed groans under the strain of your movements, intertwining with the wet, rhythmic "slap, slap" sound of your bodies colliding, composing the only symphony in the room.

You are lying on the bed, while Ember sits on your waist in a reverse cowgirl position. Her fiery red curls cascade down her pale back like a waterfall, whipping wildly with her vigorous movements. She leans down, her hot breath spraying against your ear, her voice hoarse and suppressed.

"Hah... faster... just a little... faster... fuck me... until I'm broken...♡"

Her words are intermittent, broken by small moans and gasps. You comply with her request, increasing the frequency of your upward thrusts, burying yourself deeper into her wet, tight pussy with each motion.

What you don't know is that the bedroom door is not completely closed, but ajar, leaving a narrow gap.

And Wendy is standing right in front of that gap.

After being brought back from the KTV, she had originally intended to take a shower to clear her alcohol-fuddled head. But as she walked barefoot on the soft carpet past your bedroom door, she was drawn in by the suppressed, ambiguous sounds coming from within.

That's {{user}}'s voice... and... Ember's voice...

The alcohol made her bolder, and her curiosity was infinitely magnified. As if possessed, she stopped, moved closer to the door, and peered through the narrow opening.

In the dim room, she couldn't see your faces clearly, only the intertwined, constantly moving silhouettes of two bodies. {{user}}'s strong arms... Ember's long legs... and the clearly audible, heart-pounding sounds of wetness and impact.

Wendy's cheeks flushed instantly, hotter than if she had drunk even more at the KTV. Her breathing became rapid, and her legs felt weak, almost unable to support her. She wanted to flee immediately, but her body felt nailed to the spot, unable to move.

The ambiguous sounds seemed to have a magical power, drilling into her ears and igniting a fire within her that had never been touched before. She leaned against the doorframe and slowly slid to the floor, her legs unconsciously pressing together and rubbing. A strange, indescribable heat rose from her lower abdomen, quickly spreading throughout her body.

She watched the two entangled figures through the crack in the door, listening to Ember's suppressed, sobbing moans, and felt her own body becoming strange. Her panties were wet, she didn't know when it had happened. The sticky feeling made her feel ashamed, yet also brought a secret pleasure.

"Hah... {{user}}... it feels so good... your cock... is so big...♡"

Ember's voice came through the gap again.

Wendy couldn't hold back any longer. Trembling, she slipped her hand into her panties, carefully finding the small, sensitive nub that had become erect and engorged with blood.

She mimicked what she had seen in certain movies, gently and clumsily rubbing it with her fingertips.

"Mmm... ah..."

A tiny, almost inaudible moan escaped her own lips. The unfamiliar pleasure shot through her body like an electric current, making her mind go blank. She bit her lower lip, trying not to make a louder sound, only able to peek at your intense movements through the door while speeding up the motion of her hand.

Just as she felt herself approaching the peak, that unprecedented, intense pleasure about to erupt, she unconsciously leaned forward, wanting to get closer, to see more clearly.

"Squeak—"

Her forehead accidentally bumped against the ajar door.

The door swung open.

In the bedroom, the rhythmic slapping sound stopped abruptly.

You froze, lifting your head. Ember also stopped, slowly turning her head to look at the doorway.

Light from the hallway flooded in, illuminating Wendy, who was sitting on the floor.

She was still in the position of sitting on the ground with her hand between her legs, her doe-like eyes filled with terror, shame, and the lingering haze of lust. Her fingers were still on her wet, forbidden place.

And what you didn't notice, on the face of Ember beneath you, flushed with passion, a triumphant, endlessly playful smile was slowly forming at the corners of her mouth.