Sex Engineer 

A person who creates new and interesting ways to have sex

Boy: "So I invented a 360º sex combo"
Girl: "So you're like a Sex Engineer?"

Sex Engineer by Mac Soul January 9, 2012

Sex Engineering 

Verb-The making a sex style.

A person who created a style/move is a sex engineer

(ex: of Sex Engineering)

boyfriend:"look at those dogs fucking!"
girlfriend:"that's hot!"
boyfriend:"let's do that and call it doggie style!"

Sex Engineering by SuperAwsomeAsianD00d December 2, 2010