This AV features a natural G-cup S-class actress and a sunny, big-breasted older sister, packed with close-up breast play and seductive whispers in high-quality 8K video. The realistic texture of the soft, natural breasts swaying right before your eyes is palpable. The binaural recording of seductive whispers is a treat for the ears, offering an immersive experience. With a variety of positions like cowgirl, facing seated, pile-driving cowgirl, and missionary, all designed to highlight the breasts, viewers can enjoy all aspects of breast play, including titty fucking, nipple rubbing, breast squeezing, and licking. The line, 'If you go that hard, I'll end up moaning~!' perfectly captures the tension and excitement of the situation. It's a work that realistically portrays the extraordinary experience of secretly having sex with an older sister without getting caught by your girlfriend.