A secret spot for peeping at underwear: the older sister in the same apartment sees right through your panties! Thinking this is how it is? Then you meet the gaze of the older sister whose underwear is being seen every day… HUNTB-382

Looking at exposed underwear is a daily hobby. While waiting as usual, my older sister unexpectedly let me see her underwear... Then she leaned closer and said, "Want to see more when no one else is around?" She actually said that. I got incredibly excited looking at her exposed underwear. She even said, "Want to touch it?" Then my sister gradually went further. Finally, it even escalated to sex. She upgraded my voyeuristic tendencies to a sex partner!? I stepped onto the adult ladder in one fell swoop.