no anal, maybe oral - just dont talk about it...
positions are just not talked about. if you do you could get your hand slapped.
I have heard of the some suggesting missionary is the only "proper" way to have sex but for those I ask.. "how did Adam know he was alone unlike the animals?" was he reaching under and examing their genitalia?
OR !!! - did he see them having sex???? When Eve came around would he have reasoned - "we wont have sex like animals, we will have sex this way cause its cleaner" ? Of course not. He would have said "hey Eve, see.... thats how you do it!
Then he would have bent her over and drove her home!