Intense interrogation and BDSM in 1960s-themed Cold War story

In the 1960s, during the Cold War, a traitor was caught and subjected to brutal interrogation. The man was tied up, his tongue cut out, and his genitals electrocuted. His wife, a loyal citizen, was forced to watch as her husband suffered. But she also had to perform oral sex on him, making it a twisted BDSM slave training session.