Having started living alone after getting into university, every time I saw my neighbor, "Zan," I felt uncomfortable looking at her voluptuous, tight-fitting jeans and her shapely buttocks. One day, when I was invited to her house, she was kneeling and searching for something, and that buttocks, more prominent than ever, were right in front of me. Finally, unable to bear it any longer, I ripped open her jeans and penetrated her from behind, thrusting wildly until I ejaculated inside her. Later, Zuan, feeling the long-awaited amazing penis, spontaneously started to sway her hips...