35

Si-woo came out of the bedroom holding Se-young.

Since Se-young's legs were spread apart, Si-woo's hips were supported with his hands, and they were facing each other, Si-woo's erect penis was rubbing against Se-young's front part, faithfully receiving great stimulation with each step.

Today was the day Seyoung wore a bra for the first time.

Seyoung rolled up her apricot-colored pajama top up to her neck to show Siwoo that she was wearing a bra.

Even though her mother was right where she could see her, Se-young only glanced at her, didn't pay much attention, and openly committed an act that was taboo in the family, showing her inner skin to Si-woo.

Perhaps because he had seen such a scene, Si-woo felt that Se-young's body was different from the previous day.

Plus, Se-young's whisper as she walks towards Si-woo.

The first time he heard the word 'pervert' was so strong that Si-woo felt a shiver run down his spine at such a provocative whisper.

Si-woo releases one hand that was supporting Se-young's buttocks and puts his hand under Se-young's top, slowly feeling the bare skin of Se-young's back and sides.

He checked Seyoung's development by gently pressing Seyoung's back and buttocks against Siwoo's chest and penis.

Clearly, the heaviness of Seyoung's body was changing day by day.

She is slowly growing into a sexy body like her mother and older sister Sehee.

**

Si-woo pulls the blanket over the bed in Se-young's room and lays her down.

Is it because I was very irritated all day today?

Is it because I feel confident that I can get over it even if I get caught by my mom?

I feel like I can try bold things with Seyoung.

Siwoo placed his hand on Seyoung's thigh.

I feel Seyoung's body as I gently sweep it up, as if giving a massage.

Past the pelvis, smooth stomach and ribs...

And even my chest started to swell...

Seyoung's body started to gain weight...

Si-woo was confirming the fact that he could no longer be considered a child anymore through the hands that Se-young placed on his body.

Siwoo unbuttons Seyoung's top and opens it wide on both sides.

I can see the white bra I saw last night.

A small piece of cloth shyly covering Seyoung's chest.

It only covered it and had no function whatsoever to support the breasts.

Si-woo gently pushes the small piece of cloth that is ceremoniously covering Se-young's chest upwards.

Two light pink nipples stick out, seemingly asserting Seyoung's girlishness.

Siwoo gently bit the nipple with his mouth.

Then, use your lips to gently roll it.

I loved the feeling of the soft tip changing shape and rolling against my lips.

Seyoung's tiny breasts will soon grow to an enormous size that will shake the hearts of many men.

I don't want to be taken away! I don't want to be seen!

The moment Si-woo feels pampered, he pulls Se-young's nipple hard into his mouth as if he were actually sucking milk.

"Uh...um..."

Seyoung's moaning sound

Siwoo was startled, but not too embarrassed.

For some reason, an unknown, unknown source of anticipation was filling Siwoo's heart.

**

When Siwoo came down from his room on the second floor, he brought his smartphone and a box of condoms with him in his pocket.

Of course, I wanted to use it, but when I saw Seyoung moaning for a moment, an idea occurred to me, so I took out my smartphone from my pocket.

Siwoo stood up, pulled down his pants, and took out his huge erect penis.

Then he brings his object to Seyoung's lips.

Holding the penis pillar with his hand, Seyoung gently pushes the tip of the glans against his lips and moves it up and down, opening his mouth.

Se-young's mouth gradually opens and Si-woo's things begin to squeeze into Se-young's mouth.

Seyoung's mouth was moist.

The head of the glans and the top of the pillar are moistened with the warm saliva in Seyoung's mouth.

Finally, Seyoung put Siwoo's large object in her mouth.

Si-woo thinks that if he puts more in, Se-young will wake up, so he carefully moves the object back and forth.

As the glans is rubbed, I can feel the feel of Seyoung's mouth and tongue.

The fact that Seyoung had his dick in her mouth seemed to amplify the pleasure Siwoo was actually feeling several times more.

He reached out and squeezed Seyoung's breasts, then gently caressed her nipples.

Si-woo was enjoying himself, rubbing Se-young's mouth leisurely.

As I was doing this for a while, Seyoung suddenly pursed her lips.

The moment of unbearable pleasure felt from Siwoo's things.

A tingling sensation passes through my spine.

It felt like my body was bouncing and twisting.

Seyoung's innocent and lovely face

Even though I didn't make any drastic movements because of Seyoung's squirming mouth, I feel like I want to erupt semen.

Seyoung was providing extreme stimulation just by biting Siwoo's huge and violent cock and gently biting her mouth.

'Ugh~'

Si-woo suppresses a moan as he tries to hold it in.

Seyoung uses her tongue and mouth to periodically suck Siwoo's prick, perhaps because of her habit of sucking her mother's milk.

I thought that with Seyoung's mouth like this, Siwoo would go away even if he sucked his finger.

How does mom hold on when her breasts are sucked?

As I think about such things, a sense of crisis comes over me.

If you ejaculate in Seyoung's mouth, it will be very difficult to handle it.

I needed to wipe the semen from his mouth, but I couldn't think of a way to keep Seyoung from waking up.

Si-woo, who decides that it is no longer dangerous, quickly takes a picture of Se-young's face holding his item with his smart phone.

'click'

'click'

'click'

After taking the picture, Si-woo tries to suppress the feeling of urgently pulling the object out of Se-young's mouth.

Seyoung's saliva continued from the tip of the penis to Seyoung's mouth, drawing a line that curved downward.

'Uh...uh...huuuh~ugh'

Siwoo's moans escape without even thinking about it.

He wanted to ejaculate on Se-young's face or chest right now, but Si-woo barely held back the feeling of ejaculation because he wanted to focus more on his goal of sending his mother away today.

Siwoo immediately opened the message window.

And then, while sucking on Seyoung's breasts, I put into practice the crazy thing that came to my mind.

As if reporting to her mother, she was sending a photo of Seyoung that she had just taken.

Seyoung was sleeping with her mouth wide open and sucking on Siwoo's dick like a baby.

You will see the number 1 next to the photo you sent.

To be honest, even though Si-woo took such a bold action without hesitation, I was a little worried.

It felt like my mom would run out of the room right now and get angry, asking what on earth I had done to my sister.

What Si-woo did to his mother was still molestation that was carried out while both were conscious to some degree, but what Si-woo is doing to Se-young now is literally shameless sexual harassment for which there is no room for excuses.

You may be beaten, kicked out of your home, or in the worst case scenario, the police may be called.

However, along with such worries and anxiety, it was also true that the other side of Si-woo's mind was filled with excitement and anticipation, saying, 'If mom just pretends not to know this...'

Si-woo sat with his knees on Se-young's bed, concentrating on the smartphone screen for a while.

Soon the 1 next to the photo message will disappear.

As soon as I saw 1 disappear, I felt something like an exhilarating sound in my chest.

Mom checked the photo of Se-young holding Si-woo's cock.

Siwoo's body was shaking violently due to the excitement added to his sense of tension and guilt.

**

Siwoo was paying attention to the sounds outside and waiting for the feeling of ejaculation in his penis to subside.

You never know when your mother will run out of the master bedroom into Seyoung's room in anger.

As time passed, the sense of urgency and tension seemed to subside little by little.

In the end, my mother didn't reply or run out.

Even putting Si-woo's things in Se-young's mouth has now been accepted by her mother.

This was a completely different issue from showing that he had ejaculated in Se-hee's or Se-young's panties.

Have sexual expectations and reverence for sons surpassed maternal protective instincts for daughters?

Siwoo thought that maybe today he could really make his mother his sex slave.

**

Siwoo's things were still stiff.

As I was spending some time looking at Seyoung's pretty face, calming down the feeling of ejaculation, I noticed that the saliva that had been applied to the glans and the upper pillar was now almost drying up.

Siwoo tries one last time to gently insert his penis into Seyoung's open mouth.

As soon as I put it in, Seyoung's mouth started clenching as if sucking milk.

Feeling extreme pleasure again

Seyoung's saliva was again being applied generously to the glans and the upper pillar.

Siwoo pulls the object out of Seyoung's mouth.

He covers Seyoung with a blanket and Siwoo takes off all the clothes he was wearing.

I grabbed my clothes and other things and went out to the living room.

Siwoo was now standing in the living room, completely undressed, showing off his huge erect penis.

The head of the penis is covered in a lot of Seyoung's saliva.

If Sehee noona from upstairs came down and saw me, she might call me crazy.

Every time I walk slowly and move towards the master bedroom, I feel the cold night air hitting my dick irritatingly because of Seyoung's saliva on my genitals.

So Siwoo heads to the master bedroom to be with his mother.

Creating a friendly family36