Because It's a Succubus 1
My finger found the spot over her panties where her clit was and rubbed it gently.
"Aaaah! No! Not there…!♥"
But she didn't push my hand away. Instead, she leaned in closer, unconsciously thrusting her hips forward. When I nudged her panties aside, Haruna's pink labia came into view. Her clit, swollen with arousal, peeked out like a little pearl, and clear love juices kept flowing from her entrance.
"Whoa… Succubus sis, this is really pretty."
At my exclamation, Haruna nearly teared up from embarrassment.
"D-don't say that!"
She cried out, but when my finger gently parted her slick folds, she couldn't speak anymore.
"Ahhaang!♥"
Her body trembled. The tip of my finger brushed her entrance, and her hot inner walls contracted like they were trying to suck me in.
"Do I need to put this in to save sis?"
I asked, pointing to my rock-hard cock. Haruna's eyes went wide at the sight. She'd sucked it last night, but seeing it up close like this made it look even bigger and more intimidating.
It stood straight up, thick and long, with clear precum leaking from the tip.
"Y-yes… That's right… Put it… in this lady's… here… and your sis will…"
Haruna couldn't finish her sentence. Her gaze was locked on my cock, and she unconsciously licked her lips. I carefully climbed on top of her.
"Succubus sis, tell me if it hurts. Saving sis is important, but your body can't get hurt."
Her eyes nearly welled up at my innocent concern. In this situation, Dojin worrying about her felt too precious. When my glans touched her entrance, she shuddered.
"Uuuh!♥"
Her inner walls clenched reflexively at the hot sensation.
"I'll go slow."
I whispered, easing my hips forward. My thick cock slowly pushed into her tight pussy.
"Aaaaaah! It's… big! Too big!♥"
Haruna screamed, raking her nails down my back.
"You okay?"
I stopped, worried. She panted roughly and nodded.
"K-keep… going… Satisfy this lady… and your sis will…♥"
Her acting was already a mess, but I kept playing along. I thrust deeper, spreading her inner walls.
"Uaaaaah!♥"
She arched her back with a cry. My cock reached her deepest spot. The sensation of my glans pressing her cervix made her head spin.
"Succubus sis… It's so hot in here. And it squeezes so tight."
I marveled, and she covered her face in shame.
"Th-that's this lady's… special… magic…♥"
I started moving my hips slowly, and she let out a string of moans: "Ah! Ah! Ah!♥" Each thrust in and out rubbed her walls, sending electric pleasure surging through her body.
"Th-this… feels weird… My body's… going weird…♥"
She mumbled, and I looked even more concerned.
"Does it hurt? Should I stop?"
But she shook her head fiercely.
"N-no! If you stop… your sis…!"
She wrapped her legs around my waist, pulling me deeper. When my cock hit her G-spot dead-on, she bowed her back like a bowstring.
"Uaaaaack!♥"
Her walls spasmed wildly, milking my cock relentlessly.
"Succubus sis seems to like it more here."
I said innocently, keeping the pressure on that spot. Haruna was half out of her mind.
"Ah! There! Keep hitting there! This lady's… weak spot… Ahhaang!♥"
Her acting had completely fallen apart, but I kept treating her like a succubus.
"Will this bring sis back?"
I asked, thrusting harder. The bed creaked, filled with the sounds of our bodies slapping together. Splash splash, slurp slurp.Squelch squelch.
Her breasts bounced with every movement, and endless moans poured from her lips.
"Ah! Ah! Good! So good! This lady… this lady…!"
Suddenly, her body convulsed violently.
"I-I'm cumming! This lady's cumming!♥"
She screamed, clinging to me tightly. Her walls pulsed rhythmically around my cock, pushing me over the edge.
"Succubus sis… Me too… I feel weird too!"
I groaned, thrusting a few final times before unleashing hot semen deep inside her. Spurt spurt. Splurt spluuurt.
"Uaaaaack!♥♥"
Haruna wailed in her final climax, her whole body shaking. The feeling of my hot cum filling her womb triggered another orgasm. We panted, holding each other close. Tears of pleasure streamed from her eyes, and I gently stroked her.
"Succubus sis… Is sis back now?"
I asked innocently. She tried to pull herself together.
"Y-yes… This lady is… satisfied now…"
But she trailed off and nestled into my arms. She had no strength left for acting. She just wanted to melt into my warmth and touch.
"But succubus sis…"
I said cautiously.
"Your voice sounds just like sis's. And your body too…"
Haruna looked up in shock. Had I figured it out?
"Th-that's… because this lady borrowed your sis's body…"
She answered awkwardly, and I nodded.
"Oh, got it. So sis is really coming back now?"
Haruna's heart was a mess. How long could she fool this pure little brother? But she had no time for that. My cock was still inside her, hardening again bit by bit.
"Ah… Not yet… This lady isn't fully satisfied…♥"
She mumbled, and I looked surprised.
"Then we need to do more?"
Haruna nodded shyly. Truth be told, she wanted more. Sex with Dojin was even better than last night. His innocent reactions and concern turned her on more.
"Th-then this lady will… be on top…♥"
She pushed me down flat. Straddling me, my cock speared deep again.
"Uuum!♥"
She moaned, starting to rock her hips slowly. Now she was in control. I gazed up at her bouncing breasts in awe.
"Succubus sis… You're so beautiful."
My pure praise made her move with more passion. The sound of her ass slapping my thighs echoed in the room.
"Ah! Good! This angle… so deep…!♥"
She cried out, grinding harder. My cock kept battering her cervix, driving her insane.
"Succubus sis… You're too beautiful… I can't help it…♥"
I mumbled, grabbing her waist and moving with her. Our bodies synced perfectly, building even deeper pleasure. Haruna was racing toward another climax.
"Again… I'm cumming again! This lady… again…!♥♥"
Haruna's body convulsed once more in orgasm. She collapsed onto my chest, gasping for breath. Sticky heat mixed from our sweat-slicked skin.
"Hoo… hoo… Now… really… this lady is satisfied…"
She whispered shakily. But her walls still clung to my cock, refusing to let go.
"So sis is really back now?"
I asked innocently, stroking her back softly. But deep in my eyes, something else stirred. Haruna, completely fooled, nodded.
"Y-yes… She'll… come back soon…"
She answered, slowly rising. As my cock slipped out, our mixed fluids trickled down her thigh in white rivulets.
"Wait, succubus sis."
I grabbed her wrist suddenly.
"It's not over yet."
She looked at me puzzled.
"Wh-what?"
"A succubus satisfied with this much? A real one would want more, right?"
Haruna panicked at my words. She had to keep up the act.
"Th-that's…"
"Or are you a fake succubus?"
Under my suspicious gaze, she blurted out,
"N-no! This lady is real! It's just… your sis's body is weak…"
"Then prove it."
I challenged.
"A real succubus could do things sis never would."
Her throat tightened. She knew what I wanted—and it scared her.
"Wh-what do you want me to do?"
Haruna asked in a trembling voice. I got up from the bed and grabbed something from the tray on the desk.
"Masturbate with this."
It was a banana. Her eyes widened.
"Wh-what?"
"A succubus could use something like this. Sis never would."
Haruna stared at the banana, trembling all over. This was something she could never do as herself. But to keep the succubus act…
"Th-this lady doesn't… use dirty things like…"
She hesitated, and I pulled a condom from the drawer, slipping it over the banana.
"There. Clean now, right?"
"B-but."
I gave her a doubtful look.
"You're fake after all. A real succubus would handle basics like this."
"N-no! This lady will do it!"
Haruna shouted desperately.