常見例句S. and Canada were surveyed by Corty, an associate professor of psychology at Penn State Erie, The Behrend College, and student Jenay Guardiani. 一項(xiàng)性愛調(diào)查得到了這樣的結(jié)論,最佳的性交時(shí)間爲(wèi)3至13分鍾。 返回 Guardiani