Fucking daughter-in-law while daughter-in-law is sick

Even though my son is married, he still plays around instead of working. Even if I was offered a job, I immediately quit. Hinata is a beautiful and talented wife who is not worthy of such a son. I have assets and am helping my son and his wife cover living expenses. One day, my son and his wife came to stay. And Hinata and I were a natural progression...