Missionary position
What is the missionary position?
WordNet Dictionary
Definition: [n] a position for sexual intercourse; a man and woman lie facing each other with the man on top; so-called because missionaries thought it the proper position for primitive peoplesThe story went that "primitive peoples" were free and inventive with their positioning. They saw the missionaries in only one -- so they called it the "missionary position."
I've got some friends who were missionaries - they never mentioned that they weren't allowed to do it doggy-style...
(she had a cute bottom, so it would have been a waste to miss it)