I was planning to go back to my wife's parents' house for a long time, but she was too busy with work, so I ended up coming first. - It was a little awkward to be there with my mother-in-law, Kogiku, but I wanted to take a break and relax after a long time. - My mother-in-law, who I hadn't seen in a while, welcomed me happily. - I took the opportunity to help her, but I couldn't help but feel lustful at the sight of my mother-in-law's voluptuous body, and began to fantasize about it. - In my fantasy, Kogiku-san was fair-skinned and had big breasts, and her pussy was even tighter than my wife's, and I felt like I was sucking her in so tightly that I would cum right away. - It's a delusion. - But that night, I wanted to feel the tightness in that delusion, so I tried having sex with Kogiku-san, who was sound asleep. - It would be dangerous if I woke up, so just the tip, just the tip. - I was so excited that I came out right away. - Oh, good thing I'm not awake. - Maybe if I keep going like this, I'll be able to add little by little without getting caught. - I'll try to go back in a little deeper tomorrow.