.

The current Kim Doha was different from before.

He had been a gentleman who enjoyed considerate sex with his partners, but now he had become an investigator whose nap was interrupted.

Normally, he would have checked if his partner was sufficiently aroused before penetrating them, but this time, he quickly removed the panties of Serena, who was sticking her buttocks out, and immediately inserted his penis.

Thump-♡

“Haaaaaah……♡”

It was a sudden insertion without any caressing, but it slid in without any hindrance. Serena’s vagina was already actively secreting love juices.

“What’s this? Why are you so wet? Were you pleasuring yourself while giving fellatio?”

At Kim Doha’s inquiry, Serena replied in surprise as if she were guilty.

“No, no. I only focused on sucking your penis, Master…….”

“You got this way just from sucking with your mouth? You really have a weak vagina, Serena.”

“Heeeing…….”

At Kim Doha’s teasing, Serena made a crying noise.

He often made fun of her vagina for getting too sensitive when they had sex, so this could be seen as some kind of lover’s banter.

However, the conversation was bewildering to Ciel, who was listening from the side.

‘If the vagina gets wet while sucking a penis, does that mean it’s weak? Then how weak is my vagina, which has gotten that way twice now……?’

Ciel, who had some confidence in her ability, became slightly disheartened.

‘My vagina was weak……’

Slap-!

A crisp sound rang out. It was the sound of Kim Doha slapping Serena’s buttocks.

“Hmm……”

“Haah……♡”

He snorted with satisfaction as he fondled her buttocks a few times, then, without warning, he started to forcefully thrust his hips down.

Thump-♡ Thump-♡ Thump-♡ Thump-♡

Serena was taken aback by this sudden onslaught.

“Heuh…♡, Ah♡, Ah♡, Ma, Master♡, Haaaaah…♡”

Squish-♡ Swoosh-♡

Serena, who was already on the verge of an orgasm, reached her climax as soon as her vagina was penetrated a few times.

Serena, bowing her head, tightly clutching the quilt with both hands and trembling in her waist and hips, endured the storm of pleasure.

Kim Doha grabbed her golden hair and lightly pulled it as he spoke.

“Raise your head, Serena. You have to show your little sister what a climaxing face looks like.”

Serena’s face was flushed with pleasure as she drooled from her mouth.

“Heh…♡, Heh♡, Heeuh♡, Master♡, I’m, I’m embarrassed……♡”

Even though she felt shy under Ciel’s gaze, she did not turn her head away.

Because her Master told her to show it.

“Ah……”

Ciel recalled the sex she had had as she looked at her sister’s disheveled face.

When Master had taken her as soon as she woke up and when he had done it hurriedly while they were standing on the road.

She hadn’t seen herself in the mirror, but had her expression been just as unkempt when she climaxed?

‘My vagina is weaker than my sister’s, so it must have been even worse……’

Ciel, imagining her own ruined appearance, suddenly felt her vagina heat up, and love juices began to pour out.

Thump-♡ Thump-♡ Thump-♡ Thump-♡

“Hoooot♡, Huep♡, Haat♡, Hot♡”

While Kim Doha ravaged Serena’s vagina, he didn’t miss the love juices dripping from Ciel’s panties.

“What’s this, Ciel? You’re totally in heat, aren’t you?”

Ciel was taken aback by her Master’s sudden call.

“Yes? Yes…… Seeing my sister’s face……”

“…Seeing? Go on, keep talking.”

Under his teasing probing, Ciel honestly expressed the emotions she felt.

“Seeing my sister’s face all messed up… I imagined myself being ravaged by Master to that extent, and suddenly my vagina became hot……”

“Hooh…”

“Could it be… that my vagina is too weak, Master?”

Ciel asked cautiously as if worried about her own condition. At her appearance, Kim Doha’s penis twitched violently.Thump-♡ Thump-♡ Thump-♡ Thump-♡ Thump-♡

“Heooook…♡, Haah♡, Hueuk♡, Heh♡, Heh♡, Haaah…♡”

Squish-♡ Swoosh-♡

While all of this was happening, Kim Doha’s pelvic thrusts never stopped, and Serena was climaxing repeatedly. Still, Kim Doha spoke calmly as if Serena were a non-entity.

Slap- Slap-

“Climb on top of this, Ciel. Let me check if anything’s wrong with your vagina.”

“Yes, Master. I entrust myself to you.”

Ciel climbed on top of Serena’s back, which Kim Doha had firmly slapped, and lay down.

‘Ah……. I can feel Master and my sister’s sex through my whole body……♡’

Serena’s waist and lower body were convulsing in real time. That lewd vibration was transmitted through their connected skin to Ciel.

Kim Doha admired the two vaginas stacked side by side for a moment. Of course, his penis, which was embedded in the lower vagina, was in ceaseless motion.

Thump-♡ Thump-♡ Thump-♡ Thump-♡ Thump-♡

“Haaeuk…♡, Heooong…♡, Huek♡, Heh♡, Heuk♡”

“Hooh……”

Serena’s pink vaginal flesh chewed and sucked on his penis. Every time he pulled it out, the soft inner flesh would come out with it as if trying to hold on and keep it from leaving.

On the other side, Ciel’s pure white vagina was closed tightly, untouched, and not revealing its inside. Although modest in appearance, the love juices leaking without pause revealed its lewdness.

Kim Doha grabbed Ciel’s upper floor vagina, which meant her buttocks, and lifted it, draping her thighs over his shoulders.

“Aaah……!”

Suddenly, his field of view was filled entirely with Ciel’s pure white buttocks and vagina.

“Ciel. Put some strength into your thighs and lift your buttocks a little? It’ll make it easier for me to observe your vagina.”

“Heh…. Yes, Master…!”

Ciel slightly lifted her thighs, using Kim Doha’s shoulders as support.

Kim Doha then powerfully smacked Ciel’s buttocks.

Smack—♡!

“Heeeeuh—♡”

A powerful moan erupted from Ciel, who was lying on top of Serena.

Swoosh-♡

Her vagina even twitched and sprayed love juice.

The slightly exposed pink vaginal opening was visibly convulsing, and it seemed as if she had climaxed lightly.

Kim Doha, who had seen all of this up close, became half-certain of something.

‘She has a masochistic tendency.’

To confirm more accurately, he reached down and grabbed Ciel’s breasts.

Ciel’s pure white and soft breasts settled nicely into his palms. Her F-cup breasts, one cup smaller than Serena’s, were satisfyingly squishy.

“Haaaeung……♡”

Ciel let out a languid moan at the touch of her Master’s hand fondling her breast.

Without warning, Kim Doha gripped her breast tightly as if to burst it, a force surely to be felt as pain rather than pleasure.

However…….

“Heeeeeuh———♡♡♡!!!”

Swoosh-♡ Swoosh-♡

With a grand moan, an incredible amount of love juice poured out from Ciel’s vagina.

Having her vagina right in front of his nose, Kim Doha became wet as if he was struck by a sudden splash of water.

‘… It’s certain.’

Kim Doha confirmed it. Ciel had a masochistic tendency.

Squish-♡ Squish-♡ Squish-♡ Squish-♡ Squish-♡

Even while inspecting Ciel’s vagina, his hips were moving diligently.

“Huuuk…♡, Hout♡, Haaak…♡, Heuk♡, Heh……♡”

Squirt-♡ Swoosh-♡ Swoosh-♡

Serena had reached her climax several times already.

Kim Doha, too, was slowly approaching his peak, the arousal he’d built up slowly gathering to the tip of his penis.

“I’m going to come, Serena. Tighten your vagina, don’t let it spill, and accept it.”

“Yes, Ye-heeet—♡”

Kim Doha grabbed Serena’s waist and began to ejaculate with his hips pressed tightly against her buttocks.

Throb- Throb- Throb-!“Haaaeung…♡, Hoooo…♡, Heeeeuk……♡”

Serena felt an intense pleasure as if her brain was melting from the feeling of hot semen filling her womb.

And then she collapsed.

She didn’t faint, but a sort of mental exhaustion had overcome her.

“Your sister has collapsed, Ciel?”

“Yes.”

Ciel looked down at the face of her sister beneath her.

Her expression was ecstatic, like a person who had been swept off the cliff of pleasure, drooling uncontrollably.

“…My sister has an incredibly happy expression, Master.”

“Don’t worry. I’ll make you feel that way soon.”

“Ah……♡”

Kim Doha lowered Ciel’s buttocks and made her sit facing him. Beneath them, Serena was still lying down.

“Huuuuuuuk……♡”

Serena lay down, squeezing her vagina tightly to prevent the semen that her Master had given her from leaking out. Kim Doha planned to have sex with Ciel on top of her.

At that moment, Ciel looked at Kim Doha and asked with a worried tone,

“Master, what were the results of inspecting my vagina…? Is my vagina too weak…?”

“Um…”

Kim Doha met her eyes and spoke. Even in the darkness, her golden, luminous pupils were clearly visible.

“First of all, Ciel, having a weak vagina isn’t necessarily bad. Being able to feel easily is a blessing, and even if your vagina gives up easily, you can still take a penis as you please.”

“Ah… That’s a relief…!”

Ciel, who had been worried on her own, smiled brightly.

Kim Doha continued, his expression serious,

“But, Ciel, your vagina seems a bit special. It seems like you have a masochistic tendency.”

“Masochistic tendency…?”

“It means you perceive the pain I give as pleasure.”

“……”

Ciel thought deeply.

‘…Is that so…?’

Honestly, she still wasn’t quite sure; that was her conclusion.

For such a Ciel, Kim Doha stood up from his place.

“Let’s do a simple test now.”

A warm erect penis, just pulled out from Serena’s vagina, appeared in front of Ciel’s eyes. The penis was coated with white semen and Serena’s love juice.

‘Ah… sweet scent…♡’

Unconsciously, Ciel stuck out her tongue to lick the penis.

“Ssseup. Wait.”

“Hot, yes!”

Kim Doha vigorously waved his erect penis in front of Ciel’s eyes.

“Now, how do you think it would feel to be slapped in the face with this penis, Ciel?”

“Um…”

Ciel thought for a moment before answering.

“…I don’t know.”

It was an honest answer. After all, she wouldn’t know until she had experienced it.

“I’m going to try it once, so please tell me how it feels afterward.”

“Yes, Master.”

Kim Doha then twisted his hips and swung his penis with all his might.

Chyaap-!

The full swing using a hefty 20cm penis struck Ciel’s right cheek. Perhaps because the penis was damp, it made a louder slapping sound.

“…!”

Ciel’s pure white wings fluttered momentarily, startled by the more intense impact than she had expected.

After being dazed for a moment, she looked up at Kim Doha with flushed cheeks and said,

“It feels… very good…♡”

Her voice quivered as she felt pleasure.

… Wasn’t there an old saying? If someone strikes you on the right cheek, turn to them the other also?

Ciel, being an angel, seemed to follow this advice very well. With gleaming, expectant eyes, she even raised her left cheek.

“Could you… hit me one more time…?”

Her voice was full of lust as if seducing her Master.