Ida and Oscar Have Been Happily Married for 15 Years

Multiple Choice

Ida and Oscar have been happily married for 15 years. However, their sex life is predictable and monotonous. They receive a dinner invitation from Victor, Oscar's colleague. After getting drunk, Ida engages in sexual intercourse with Victor in Oscar's presence. Simultaneously, Oscar also gets physically intimate with Victor's wife. In the context of love and communication in intimate relationships, Ida and Oscar's sexual behavior is likely to be termed

A) benching.
B) swinging.
C) handfasting.
D) nesting.