http://www.medicaldaily.com/shoes-sex-appeal-why-women-high-heels-make-men-weak-knees-311622
"The first three studies involved a woman confederate wearing black shoes with no heel, a 2-inch heel, or black pumps with a 3.5-inch heel asking men for help in various circumstances."
"The first three studies involved a woman confederate wearing black shoes with no heel, a 2-inch heel, or black pumps with a 3.5-inch heel asking men for help in various circumstances."