My stepsisters are sexy demons, and I must protect them

When Cassian comes to, it's the middle of the night. He's lying on a cot in the infirmary, a strange weight pressing against his chest. When he opens his eyes fully, he finds Lilvyra, in her human form, lying atop him.

Out of the corner of his eye, he spots another figure nearby. Eiric, in the bed beside him, is already awake and staring at him in silence, his tone thick with bitterness and frustration. That draw — which to him is nothing more than a disguised defeat — torments him more than he can bear. After all, having to share first place with Cassian is something he hadn't even imagined in his worst nightmares.

«Don't think for a second things will change now,» Eiric growls. «Even if the fight ended in a draw, I've no intention of showing any respect to someone like you. I know there's something hidden behind all this, Cassian. Sooner or later, the truth will come out — and you'll meet the same end as your father, count on it!»

But Cassian pays no attention to his words — Lilvyra replies in his stead.

«You think the draw feels unfair, don't you? Honestly, you should consider yourself lucky. Cassian is far stronger than you, trust me. The only reason it didn't end in his favor is because he was simply playing with you, testing new spells instead of using the ones he's already mastered. If he had fought seriously, he would've destroyed you,» she says with a mocking grin.

Then, with graceful movements, Lilvyra slips gracefully off Cassian's body and moves to the cot beside them, sitting astride Eiric's chest.

Eiric flinches slightly. His expression changes instantly — confusion and embarrassment flicker across his face. His body stiffens, his heartbeat quickens, and his chest tightens as Lilvyra's thighs, barely covered by the short skirt of her uniform, hover only inches from his face.

«Tired of that scrawny little runt and decided to treat yourself to a real man?» Eiric asks, masking his fear with a forced, arrogant smile. His body, still unable to move because of the injuries he suffered during the fight, leaves him completely vulnerable. And Lilvyra's looming presence, so close, drives him into mounting anxiety, unable to grasp what that girl intends to do.

Cassian watches the scene, his heart pounding, a mix of jealousy and unease rushing through him.

Lilvyra's hands tighten firmly around Eiric's wrists, locking him in place. Then she leans forward, slowly lowering her face toward his. Their lips are so close they could almost touch. Eiric holds his breath, unable to look away, as she whispers softly in answer to his earlier question. Her closeness — both intimate and suffocating — sends a shiver through him. He can feel the warmth of her breath against his skin.

«W-What are you going to do...?» Eiric stammers, his voice trembling with fear.

Lilvyra tilts her head slightly, a sadistic smile curling her lips. «Why do you need to hear it from me when your trembling body already tells me you've figured it out?» she replies cruelly.

Eiric grimaces, both frustrated and resigned. «Do I stand any chance of making it out alive?» he asks, his tone devoid of hope.

Lilvyra moves her lips even closer to Eiric's. «A human with your strength would undoubtedly cause us trouble in the future,» she murmurs, her tone calm but icy. «I could offer you a chance to join the Cult of the Primordial Shadow, but already knowing what you'd say, I won't waste time pretending otherwise.»

Eiric closes his eyes for a moment, as if accepting his fate. «Make sure my remains reach my family intact,» he says quietly, his voice heavy with the awareness of his inevitable end — like the final wish of a condemned man.

Lilvyra nods slowly, as though granting that last request. Then, with an almost tender gesture, she presses her lips against his. A soft, almost innocent kiss — but deadly all the same. A gentle drowsiness overtakes Eiric as his strength fades away. His eyes drift shut, and his breathing weakens until it finally stops.

«It seems even you can feel compassion,» Cassian murmurs, staring at Eiric's lifeless body. «You granted his last wish and even killed him without letting him feel pain,» he adds, his tone laced with quiet surprise.

Lilvyra slowly climbs off Eiric's corpse and turns her eyes to Cassian. Without saying a word, she sits astride his pelvis. «We came from completely different worlds, but I can't deny his worth. He deserved a death that honored his strength, nothing less,» she says, a mischievous smile curving her lips as her gaze grows bolder. «But now... it's time for the final act of my mission.»

With slow, sensual movements, Lilvyra begins to undress, unveiling her pale skin inch by inch. First the uniform, then her underwear, both falling to the floor in a silence so deep that Cassian can hear his own heartbeat pounding wildly in his chest. Once fully naked, her body begins to transform — her skin turns a deep grey, her black wings unfold wide behind her, and from her pink hair sprout two sharp horns.

As Lilvyra reveals her demonic form, Cassian trembles, overwhelmed by a surge of growing excitement. The tension in the air is almost tangible, and when Lilvyra pulls away the sheet covering him, his arousal ignites even more. Without hesitation, the demoness lowers his trousers, freeing his swollen, throbbing erection, and with a slow, deliberate motion, she guides him deep inside her.

The pleasure strikes Cassian so intensely that he can't stifle his moans. Lilvyra presses her palm over his mouth to muffle the sounds spilling uncontrollably from his lips, but it's useless — the pleasure is too consuming. Then the demoness silences him with her tongue — long and black — slipping it deep into his mouth, twisting and moving with a serpentine rhythm.

Barely able to move, Cassian brings his hands to her body. His fingers, driven by desire and frenzy, explore every curve of her perfect figure, gripping her thighs and breasts as her body sways above him in a passionate, relentless rhythm.

Lilvyra's black wings spread wide and rigid, mirroring the pleasure she might be feeling. Or at least, that's what Cassian believes. Watching her movements, he can't help but wonder if the creature he loves so fiercely is truly capable of physical pleasure.

He knows Lilvyra is incapable of love, yet the doubt that she might at least feel physical pleasure lingers. He prefers to keep that uncertainty rather than face a truth that could be even crueler.

Still, a flicker of hope sparks inside him when he feels the inner walls of Lilvyra tighten and her sharp black claws sink into his arms. The pain is real, but it's quickly smothered by the thought that maybe, in that moment, she's feeling the same pleasure he is.

His hands clutch her hips tighter. His body moves with one last, prolonged thrust, and Cassian feels the warmth of his release flooding into her, like a raging river set free. The long moan escaping his lips blends with Lilvyra's, and for a brief instant, they forget everything — where they are, who they are — lost in complete abandon.