Although the lecherous old man is old, he still desires sex and looks very energetic. Because his wife died early, he has not had sex with any woman for a long time. He was often overcome with emotions and extremely horny ever since his son married a beautiful and extremely delicious young wife. He longed to fuck his daughter-in-law once and then he would feel satisfied for the rest of his life. He often secretly peeked at his daughter-in-law while bathing. Every time he did, his cock would get "tense" and he just wanted to rush in and fuck his son's beautiful young woman. And he was lucky to know that his daughter-in-law was also extremely lustful and liked to have sex...