Chapter 139 – A Night Longer Than Expected (10)

“And this”

I gave my sister my mom’s rotor switch that I had.

“This…”

“Yes, that’s right”

But I didn’t know that it was my mom’s.

“Last time, we had a bet on who would go first at the table with a vibrating dildo, right? This is the second round about that.”

As soon as I said that, I completely took off my pants. Then I climbed onto the bed and sat down looking at my mother and older sister.

“You know what the product is, right?”

But my mother and older sister didn’t really understand what it meant.

“The switch I gave to my mom is my sister’s. The switch I gave to my sister is my mom’s. They both have rotors inside.”

“Ah…”

The first one to understand was my older sister.

“Mom is number one, so I’ll give her a chance first! No complaints, right?”

At the same time, I motioned for my sister to get up.

“Mom, that switch hanging next to you. It’s the switch that operates the rotor inside my sister.”

“Oh? Ah…”

Her mother, who was on her knees with a puzzled expression on her face, began to slowly nod her head as if she finally understood what he meant.

“Mom is the one attacking. She makes my sister climax first. She’s good with any method.”

“If I make Sujeong climax first, will I win?”

“Yes”

I pointed to my cock and told my mom again what the reward was. And I waited until my mother was ready to attack my sister.

“Shall we begin?”

My mother takes her place behind my older sister, who is standing still, and asks her carefully.

“Hmm, hmm. It’s really awkward to be like this…”

My older sister also stood there, looking at her as if it was awkward to be together like this.

The sex show between the two women wearing only their underwear was about to begin. My dick was upright and bleeding as I admired the lewd bodies of the mother and daughter.

“Okay then, let’s get started”

I picked up my smartphone and turned on the stopwatch.

“Uh… Um”

The attack was definitely at a disadvantage. Because I had to find out what to do and was able to learn the skills the attacker used, I gave priority to my mother, who was more familiar with it than my older sister.

Mom first lifted her panties and switched them on to her pelvic area.

Tick-

Wooooow-

“Uuuuu…”

My sister seemed to be gritting her teeth and holding back because she felt bad because it was my mom who was stimulating it, not me. Her sister’s face was frowning, and her teeth were clenched.

“Sujeong, there’s no use holding on like that. You can just enjoy what’s happened now~”

With her relaxed appearance, the mother began to gently comfort her older sister, who was enduring her stimulation.

“How can mom… So… So natural… So sexy?”

The older sister twists her body and resists the tickling stimulation her mother gives her.

“It’s easier if we let go… After all, we just have to obey the master, right~?”

I was rubbing my cock while watching the mother and daughter play. And my older sister, who saw that action, looked at me as if pleading.

“You just have to win. Then I’ll let you do it first. This.”

I comforted my sister by rubbing my dick.

“I thought I was the only one who could have it today… Ugh?!”

Her mom attacked her braless sister’s defenseless breasts.

“Where is Sujeong’s erogenous zone?”

It was definitely something that came out of my mother’s mouth, but it was unbelievably dirty and sticky.

“Only in times like this… Speak softly…”

It seemed like he was secretly expecting tenderness from his older sister towards her mother.

“Wow~ Mom, you said she was awkward last time, but she’s perfect at it now?”

My mom was so lewd that even my mouth dropped open. The thought of her doing this to her own daughter made her even more excited.

“When you’re a slave, you’re just a slave… You have to do what your master tells you~ hehe”

Gulp-

My older sister swallowed her saliva as she looked at her mother’s attitude, probably nervous. The sound of her older sister chewing her throat was clearly heard through the silence.

“This makes you look like lesbians. You two.”

I once again reminded my mother and sister that I was in a lower position by using the word ‘you guys’.

Shocked-

The mother smiles slightly and comes behind her sister and crushes her breasts, causing the sister to go rigid and startled.

“Would you like me to take off my bra? Mom felt perfect when I touched her breasts from behind like this~~”

And she looked at me as if she was asking me to be a witness.

“Yeah. My mom felt better when I touched her from behind. But maybe it’s different with my sister?”

As expected, even when her mother stimulated her from behind, she just twisted her body and did not react in any way.

“Your sister must have a weak back”

Considering that her attacker, her mother, told her about her weaknesses, I also let her know a little about her older sister’s weaknesses.

“Hmm~ Really~?”

Mom lowers her hands from her sister’s breasts and moves them down to her sister’s waist.

“Huh… Hmm… That’s because I’m the master, it’s not a weakness!!”

However, when her mother gently wrapped her waist, the older sister lost her balance and stumbled.

“I think it’s a weakness~?”

She said, looking at her sister lovingly.

“We weren’t this close. You got this close thanks to me, so shouldn’t you be thankful, sis? Hehe.”

My mom and sister seemed much closer now than when I usually saw them. Although it was limited to the mother.

“Why are you forcing yourself like this… Ugh?!”

My older sister was struggling to deny it while being attacked by her mother. As her mother’s hand slowly moved up from her older sister’s waist, her older sister’s sensitive body began to respond.

“What’s wrong with you, sister? Let’s accept it.”

“Hmm… Sujeong is going to be your master’s slave for the rest of her life, so you should listen carefully~ We’ll be stuck together~”

In fact, my mother criticized her older sister and appealed to me about her obedience. The sight of the mother wearing only her underwear and following her son’s orders gave me a feeling of great immorality.

“Mom, let’s make it fair for her to take off her bra too. It looks like my sister is embarrassed.”

“Yes, master”

Knock-

Mom unhooked her bra, freeing her breasts. Her beautifully gathered breasts were pulled down by gravity, adding to her mother’s private parts.

Her silver piercings were sparkling, and she seemed to be doing well, having never taken them out.

“Mom, how are your breasts? Is this your first time seeing them like this?”

“Hmph, I’m not really interested. I think I’m more resilient than that, right?”

The older sister answered bluntly and ignored her mother’s breasts.

“The master really likes it even though it looks like this? Her breasts are so big that they don’t look elastic. Huhuhuhu~”

It was her mother’s voice that seemed to slightly ignore her older sister’s breasts. I was holding my breath and listening to their conversation.

I could tell by the look on her mother’s face.
She is enjoying seeing her older sister.

“Sujeong’s breasts are cute~? You can just hold them in your hand.”

Mom crushed her own breasts behind her sister’s back, lifting her sister’s breasts with both hands and massaging them.

“Ugh… It’s cold…”

The ring-shaped piercing at the end of her mother’s breast was the first thing to touch her sister’s bare skin.

Casting- Casting-

“If my genes had been mixed in even just a little, the fertilization would have been very large…”

Mom didn’t care whether her older sister was cold or not and focused on targeting her older sister’s breasts.

“Oh, my mom is so fucking tall!! She and I are so much taller than most people?! Mom’s proportions are absolutely shit!!”

When her breasts were attacked, her sensitive sister became excited and started talking a lot.

“So~?”

Mom was calm.

My sister kept talking to her mother as if she were cold and annoyed, but her mother didn’t care. Just as her mother was finding her weaknesses and exploiting them, she was steadily conquering her older sister.

‘This is my first time seeing my mother like this.’

Casting- Casting-

My older sister was being caressed by her mother with her eyes looking somewhere else with a helpless expression.

“It’s a shame that the vibrator only has an on/off switch. If I made it stronger, it would definitely stimulate me.”

As she spoke, her mother gently pressed her sister’s cervix.

“Huh… Huh?!”

How it was taught to me. When my mother pressed her sister’s stomach, she felt the vibrations become stronger and her body trembled.

“She’s my daughter, but she’s so naughty. I hope she climaxes quickly.”

Mom slowly began to increase the intensity of her caresses.

Hehe… But if I win, master’s cock is mine, right?”

“The longer you hold on like that, the more disadvantageous it will be, right?”

Mom smiled again as if it was cute. It was only at times like this that she smiled at her older sister.

However, she smiled and looked at my smartphone as time passed, as if she was determined not to let her sister be outdone.

“When you go, even if you go, you’ll be there later than Mom… So don’t take it easy on me… Ugh…”

“Try your best~ My daughter. I thought you were completely corrupted by your master, but you haven’t yet?”

Swoosh-

Mom put her hand into her sister’s panties.

“Hmm… I did a lot… Much more than Mom?!”

“Hoho~ On what basis?”

Her mother wiggled her hand in her sister’s panties as if she was going to attack her in earnest.

“You decided to show your master how pretty you are by wearing a tail plug~?”

Mom put her other hand on her sister’s plug instead of the hand inside her sister’s panties. She then places her plug between her index and middle fingers and plays with it.

“Huh?! Now, wait a minute, mom!!”

But the more her sister reacted, the more unwilling her mother seemed to stop.

“Hehe~ I’m even more excited because I’m wearing such a cute plug~”

Jipkkeuk-Jipkkeuk-

With the rotor vibrating, the plug shaking as it was stuck in her anus, and even her pussy being attacked by her fingers, my older sister gradually lost her focus.