In their 40s and 50s, widows still have strong sexual desires, but lose their husbands and spend their sad nights masturbating. Widows who are filled with such unfulfilled frustration become immersed in a forbidden affair with their son-in-law. This volume contains four lustful widowed mothers-in-law, including a mother-in-law who seduces her son-in-law while his wife is away in the hospital giving birth, and a voluptuous mother-in-law who is caught masturbating at night by her son-in-law.