Miki lives with her daughter and her husband in two households. Her relationship is good, but the only thing that makes her frustrated is that she doesn't have much time with her husband. When she was spending her days in agony, she happened to see her son-in-law, Shinichi's big penis... She was captivated by this manly and splendid thing, and suppressed her rising urges. Unable to cum, she squeezed his cum no matter where. Shinichi, who had no sex with his wife, can't help but devour her mother-in-law's voluptuous body due to her mother-in-law's lewd temptations that continue 24/7.