My son in law

I am the father of one child, a daughter who is 31, and last year she married a nice man and we get along well. Now for my back story, when I was in my mid 20's I started to suck cock, at first it was just my roommate, but soon other men joined the party, they all said I was a great cock sucker, and most said I was better then their girl friends/wives. After I was married I continued to suck cock, I enjoyed it and loved the taste of cum, my wife found out, but said she didn't care, and even watched me a few times. After she died my sex life consisted of jacking off thinking about the cock I had just sucked, or jacking off while I sucked a cock. Well one day my son in law is over and he tells me he heard I suck cock, I told him I did, and he asked if I would like to suck his cock, I fell to my knees and sucked him off, he told me how bad my daughter is at sucking cock and joked I should give her lessons. Is that something a father should teach his daught?