foreplay in the sexual act

[Historian]

3) "Missionary" position alone. Avoid positions that mimic animal copulation, no matter how "exciting" or "harmless" they may seem at first;

Um, some species copulate face to face.

Also, people have different physiologies.

5) If you can't have any more children, abstain from sex;

Abraham fell upon his face, and laughed, saying in his heart: Shall a son, thinkest thou, be born to him that is a hundred years old? and shall Sara that is ninety years old bring forth? And he said to God: O that Ismael may live before thee. And God said to Abraham: Sara thy wife shall bear thee a son, and thou shalt call his name Isaac, and I will establish my covenant with him for a perpetual covenant, and with his seed after him.