Far be it from me to question your interest in another poster's habits but you may want to consult a dictionary:
Etymology: Middle English, from Old French sodomie, from Late Latin Sodoma Sodom; from the homosexual proclivities of the men of the city in Gen 19:1-11
Date: 13th century
1 : copulation with a member of the same sex or with an animal
2 : noncoital and especially anal or oral copulation with a member of the opposite sex
So it seems that oral sex may, or may not be included in the definition of sodomy. By the way, even the repressive Catholic Church doesn't opine on oral sex per se, unless it involves a sterile sexual act.