Sandwiched by my wife and her sister

Sister Repays Loan with Her Body

Back in school, your teacher once dubbed you a "Maltese Tiger"—a rare, mythical beast bursting with untamed potential.
But potential doesn’t pay the bills. The real world hit hard, and graduation left you dead broke and jobless. Desperate, you relied on your mother—a lifelong housekeeper for the wealthy Lee family—to secure you a bottom-rung job at the Lee Group’s real estate empire. The man running the show? Shane Lee. The golden-boy heir you grew up alongside. A man you once called a brother.
When your mother fell critically ill, you went to Shane for help. Instead of a lifeline, he threw you a leash.
With cold disdain, he ordered you to move into the estate and act as a glorified dog-sitter, banishing you to the same servant's quarters your mother used to occupy. His parting words before leaving on a month-long business trip? Wait there, and know your place.
It was only when you arrived at the sprawling Lee mansion that you discovered the sickening truth. Your mother’s "room" was nothing but a cage—a suffocating, five-foot-high utility closet where a grown man couldn't even stand up straight.
But Shane forgot one crucial detail: lock a wild beast in a cage, and it doesn't become a tame dog. It just gets hungry.
You have exactly one month.
Starting from this humiliating dungeon, you're going to claw your way up the manor's hierarchy—from the ground floor to the master suites. You will make your way into the bedrooms of the women Shane holds dearest: his sister, his wife, and his mother. You're going to use your cock to conquer his closest kin, dismantle his pride, and steal his entire life for yourself.

One day, I was invited to dinner by my next-door neighbor, Ayano...

"You know, my husband is coming home a little early today.
And he said he wanted to thank you for always being so helpful...
He wants to invite you to have dinner with us tonight."

That night, I ate and drank with Ayano and her husband...
Then her husband got drunk and fell asleep.
Ah... damn it, I got an erection after seeing Ayano's ass.

"Well, I guess it can't be helped~ I did say I'd entertain you...
I have to take responsibility, right?"

I don't know why, but we're having sex right next to her sleeping husband.
Ayano's ass, her boobs, her pussy, I can't resist any of it...
Even with her husband still sleeping next to us, I came a lot inside Ayano.

The protagonist Junjiro was pessimistic and unhappy as a child because he was born with a weak body, but gradually regained happiness due to his best friend Yousuke who was always by his side and supporting him.
Shiori, who met them during school was also saved by Yousuke.
The three became good friends, but eventually Junjiro fell in love with Shiori. However Junjiro also noticed that Yousuke had feelings for Shiori too, and unable to control his own feelings, Junjiro told Yousuke how he felt and got him to help confess his love for Shiori and started dating.
As time passed, Junjiro and Shiori married and moved to the city. Junjiro eventually became concerned that he couldn't satisfy Shiori at night due to his physical weakness.
One day, Yousuke came to their city for work, and Junjiro who wanted to pay Yousuke back for his help in the past, forced him to stay with them rather than rent an appartment.
Afterwords, when Junjiro returned home from a business trip, the usually passive Shiori, shown him sexual skills that he had never seen before. Worried about why his wife suddenly changed after being left with their friend, on his next business trip, he set up hidden cameras in the house. However, nothing was shown on them and he became deeply ashamed that he suspected his wife and best friend.
But from there her mood and behavior seemed to change. Is it his imagination, or...

A Vanishing Girl's 14 Years of Pure Love
Ren Fujishiro is a young man with the ability to alter fate. Momiji, the younger sister of his lover, Kaede, has always had feelings for him.
One day, a sealed Shinigami is released. To save the cursed Kaede, Momiji decides to offer her spiritual power to Ren.
The way to offer spiritual power is to do something naughty! A deep connection allows for the transfer of spiritual power.
However, every time she transfers her spiritual power, her existence fades away.
Ten battles. And then...
"Ren, don't forget about me..."
A forbidden, pure love touching SLG about a girl who disappears for her sister's happiness.
 
★★★ Touching × Tearjerker SLG —
The Fading Woman's Many Years of Pure Love