At my little sister's birthday party, I accidentally stared at her panties... Thinking she would despise me, I tried to keep my distance at home, but my sister Kanon keeps clinging to me and even spreads her legs in front of me, showing off her panties. Her bouncy ass and healthy thick thighs... Even though I shouldn't feel desire for her, my heart races, and Kanon seems to know, getting closer and closer...