Husband goes on a business trip for 3 days and wife stays at home having sex with her father-in-law

I felt disgusted with my father-in-law, but I couldn't tell him, I was in extreme pain. Suddenly, my husband went on a business trip and I had to spend the night alone with my father-in-law, I had a hunch. My father-in-law, who was pretending to be asleep, penetrated my mattress. Because the wet tongue of my father-in-law, who often peeped on my husband making love and knew my body well, stimulated me to crawl all over my erectile area.