When I Returned Home, I Found That My Grandfather And Mother Were Having Sex. What I Saw That Day Changed Me Into A "mature Woman Lover" For Life. Maki Tomoda

离开家乡在东京生活的我，趁着假期久违地回了老家。老家住着父母和祖父。祖母去世后，祖父情绪低落，几乎卧床不起，母亲在照顾他。父亲对家庭漠不关心，总在外面闲逛。有一天，祖父的房间里传来了奇怪的声音。那毫无疑问是发情雌性的呻吟声。我起了疑心，悄悄拉开纸门一看……只见房间里，母亲正被吮吸着乳房，还爱怜地套弄着祖父的鸡巴，一副下流的样子……