FSET-610 I accidentally saw my wife's sister naked

When I suddenly saw the gap in the door that opened a little, I witnessed the nakedness of my wife's sister. Without realizing she is being watched, her eyes are captivated by the way she reveals her young, toned skin. Once she learns, she will never forget the pleasure of peeping. It's a man's nature to see it even if you know it's not cool! ! I can't fix it just by peeking, and I'm going to put my hand out so that I won't find out...