親に隠れてコタツの中で大胆近親相姦!妹がコタツで宿題をしていたようだけど気が緩んで寝てしまったみたい。妹の足が邪魔でふと中をのぞくとパンツ丸出しで大股開きで寝ている。妹だとわかっていても気になってしまい潜り込んでじっくりパンチラ鑑賞。
Bold incest in the kotatsu, hidden from the parents! It seems that my sister was doing her homework in the kotatsu, but she let her guard down and fell asleep. Her legs were in the way, so I looked inside and saw that she was sleeping with her legs wide open and her panties exposed. Even though I knew it was my sister, I was curious and sneaked in to get a good look at her panties.