With the acceptance of queer sex in these societies, I don't really see how that would be going on. Do we know? Did they use olive oil, spit, what? Or are there no sources on the matter? Thanks in advance.
This was answered in this subreddit already. https://www.reddit.com/r/AskHistorians/comments/2aygwa/how_did_people_in_the_past_perform_anal_sex/