Serina learns that her mother-in-law left because her father-in-law had become impotent. She tries to comfort him and helps with exercises meant to restore his erections, but nothing works and he sinks into despair. When she massages his groin, however, his cock rapidly swells into its first full erection in six years. Convinced it may be his last chance, he begs to penetrate her just once and remember the pleasure of being a man. Unable to bear seeing him suffer, Serina secretly agrees to sex behind her husband's back, setting the stage for a continuing raw affair.