Iori Furukawa My friend's older sister's ass is too erotic to be plump and I like ass I just have a perverted and naughty delusion

The protagonist is attracted to his friend's sister, specifically her buttocks, leading to various sexual fantasies and encounters.

1. The protagonist expresses his attraction to his friend's sister's buttocks.
2. He touches her buttocks, expressing his desire.
3. They engage in intimate activities, with the protagonist finding comfort.
4. The protagonist requests physical contact, seeking comfort and pleasure.
5. They continue to express comfort and pleasure during their interactions.
6. The protagonist explicitly expresses his desire for sexual objects or acts.
7. Their encounter concludes with expressions of pleasure and comfort.
8. The protagonist's desire for his friend's sister's buttocks remains a focal point throughout their interactions.