Well I promised a link to the first spanking scene in Starlet (1969), but thanks to the genius that is Chross, I can go one better and provide links to both Shari Mann’s otk scenes.
Also from 1969, the spanking in Thar She Blows takes place in a ship’s cabin.
I like the way both spankings are sexualised, yet also come across as quite serious punishments too. A nice balance is achieved.
(And no, ‘annus mirabilis’ doesn’t mean beautiful bottom. Although she’s got one of those too!)