"me: "daniela, do you like to 69?"  daniela: "nooooooo, it's all about the 91
"91 is a sexual position that is similar to the 69, and is most commonly used by people of lesser intelligence
""me: "daniela, do you like to 69?"  daniela: "nooooooo, it's all about the 91" What is the definition of "91"?