My Elder Sister Fell in Love With Me and Transformed Into a Yandere Chapter 4

Chapter 4: Virginity and Ejaculation

He separated his body from his sister, knelt and took off his sister’s long sweat pants. In the dim light, his sister’s healthy legs stretched long, slender and well-proportioned.

「T-This, it’s okay for me to take it off right?」
「It’s okay。 Hurry up and take it off」1

His sister raised her hips slightly. He lowered the panties through her butt. Immediately, the mons pubis, covered with a thin layer of pubic air, was exposed.

Knee. Calf. Ankle. Feet.
Suppressing the impulses of wanting to sniff the smell, he dropped the panties on the floor.

Under the night-light, his naked sister is lying defenselessly.
While thinking that this is unbelievable, he gazed at his nude beautiful sister and became naked himself. His penis stood towering, longer, thicker and harder than ever before.

Striding over his sister, their body slowly piled.
He laid both his elbows at the sides of his sister’s breasts. His overswelling penis was stuck in the cleavage of his sister’s shut legs. His testicles crawled on his sister’s thighs.

His sister lowered both her hands from banzai’ing and clung to his neck. Her hard nipples were pressed on his chest.

「Nozomu. Let’s kiss」

Crawling a little above his sister, he stuck to her mouth.

He became completely accustomed to the taste of his sister’s saliva. It’s a taste that he likes.

「Really? Me too, I also love the taste of Nee-chan’s saliva」

「That’s right」
They drank each other saliva for a little while.

Separating their mouths, his sister let out a sigh of feeling good.

「That’s right」

「At what?」

「Eh……」

「It’s okay but」
「Then, show me」

His sister tried to raise her body. This is probably the so-called ‘face up’. He got off from his sister’s body and laid down facing up.

「Uwaa, sugoi…….。 So it’s this big」2

「Can I touch it?」
「It’s okay but……」

His sister held his penis’ stem with her right hand.

「P-Pre-cum…… Nee-chan, you’re well informed 」

「Pregnant you say……. It’s just 2nd year high school, such things happen too?」

I was shown a side my sister never showed before, he thought. He’s always thought that his sister’s a late-blooming girl because she was an honor student and a well-behaved girl. That sister, she’s in the lead for her first sex with unexpected progressiveness and daring behaviors. Furthermore, her partner is her blood-related younger brother.

His sister’s right hand’s index finger crawled on his glans. Wiping off the pre-cum from the entrance of his urethra, she put her finger to her nose and smelled it. From there, she surprisingly stuck out her tongue and licked her fingertip.

「I-Is that so」
He haven’t smelled or licked it himself either.3

His sister continued playing with his penis using her finger.

「Isn’t it obvious……。 Nee-chan, if you do it like that, I’m gonna cum」

「Yeah」
「Do you cum that quickly?」

「After all, we kissed and embraced each other in the evening, because of that, it piled up quite considerably」

「What does it mean, you say. It’s semen」

「That’s right. Because the size of the sack is limited. If it’s stimulated too much it’ll splurt out」
「Heee……」

His sister began to play with his testicles using her fingers.

「What’s wrong?」

「Eh? Is that so」
「If I ejaculate, It will wither and I won’t be able to put it in」

「I see…… But, If you ejaculate once, it won’t stand up more?」

Today is Thursday.

「That’s right……. Sorry. Then, let’s finish this quickly」

Mounting her again, he kissed her deeply for the sake of starting everything over from scratch. When he continued to massage her oppai, his sister’s breathing gradually became rough.

His elder sister separates her mouth, turned her face sideways and gasped for breaths greatly.

「Nee-chan. Are you okay?」

His sister opened her legs.

He separates his body from his sister for a moment, and knelt between her legs. He slowly covered his sister, sticking close to her body.
Her upper body that he licked all over has already become dried considerably. The familiar smell of his own saliva drifted from his sister’s skin.

His glans crawled between his sister’s crotch. It’s hot and moistened etween the creases of soft meat.

「What is it?」

「See what?」

「…… Is it okay for me to look?」
「…… It’s okay」

He separated his body from his sister again and knelt. His sister raised her knees, and opened both her legs in letter M shape.

「Nee-chan. Is it okay for me to touch?」
「It’s okay」

He tried to crawl his fingertip on her labia. Spreading the heat congested opening, the wet valley glittered. He confirmed the location of the vaginal opening. He tried to put his finger a little inside.

「S-Sorry」

「No. I just let out my voice by reflex……。 Don’t mind it」

「Is it already okay for me to put it in?」

「Ah, that’s right」

「Will blood come out?」
「I think it will」

「Wouldn’t it be bad if the mattress got stained?」

「What should we do」

「I do」

He used the one he just used for bathing and brought it into the room as is. He handed it over to his sister.

「I think with this, it won’t stain the mattress, for now」

「Then……」
His sister lied down again facing up and opened her legs in letter M shape.

He held the almost grotesque overswelling penis with his right hand’s index finger and thumb.  Leaning his upper body forward, he readied his penis at a horizontal angle.
Ascertaining his position carefully, he allocated his glans on the vaginal opening. He advanced his waist slightly, and plunged half of his glans into her vaginal opening.

「Ah, uu!」

「A-Are you okay?」

「Got it」

The vaginal opening was wet, hot and soft. When he pushed his waist a little more, he felt like he could go all the way inside smoothly and easily. Not carelessly putting it in, he carefully cover his sister.

Staring at each other, 〈Chuu chuu〉, their lips lightly touched each other several times. While sniffing each other breaths, they whispered.

「Yeah……。 Shall we deep kiss?」

「Then, I’m going in alright?」
「Yeah」

Biting each other’s mouths, their tongues entwined.

「Hnnーーー!」
With her mouth been blocked, his sister raised an intense moan.

With a vigor that is impossible to be any stronger, his pubis dug into between his sister’s groins. The penis that grew long, went all the way inside to the womb of his sister. Seriously speaking, he came to worry about if he pierced into her internal organs.

「Hnn!」

「Ah、aaah！　Aaah！」

「Eh？　……。 Ahaha! Well, if you said pierce then you are piercing me. We, became one you know」
「Became one……」

His sister clung to him with both arms, and kissed him intensely. They sucked each other mouth passionately, exchanging saliva.

Before long, he felt the sign of ejaculation in his testicles. He panicked and removed his mouth from his sister’s.

「Ne-Nee-chan! I’m cumming!」

「Yeah, ejaculation!」

「Got it……. O, Owahh!
「Ah……」

Dobodobo Dobodobo!

A large amount of semen gushed out without stopping from his urethral opening. In a moment, he almost thought he was urinating.

Dobo! Dobo!

So it feels this good to ejaculate inside a woman huh.

It’d be good to quickly have a girlfriend and have sex……。

「Uuu……。 Feels good」

「Me too, it feels really good. Your sperm’s entering deep inside my belly. Somehow, I know」

His ejaculation is still continuing.  Staring at the sister he was holding down, he repeatedly kissed her over and over again.
After quite some time had passed, his ejaculation finally ended. He collapsed dead tired on top of his sister. He pressed his lips against his sister’s nape, waiting for his breaths to settle. His sister’s breathing was also rough.

Chapter end