CAJ | 학술논문

根据从猿到人面对面交配逐渐增多的趋势，可以推测已灭绝的古人物种已经采用了面对面交配体位。本文以此为基础，探讨了人类特有的所谓的“传教士式”体位的制约、起源及其响应的相关问题。研究认为，由于面对面体位增加了双方的身体接触，会给女性腹侧阴蒂等带来更多的刺激和快感，古人物种因此而越来越频繁地采用了“传教士式”体位，使髋关节等变得越来越灵活，最终促成了直立行走。现代人前置的阴道口、横向扁平卵形的骨盆入口、裸露无毛的身体等都可能与频繁采用这种体位有关。
근거종원도인면대면교배축점증다적추세，가이추측이멸절적고인물충이경채용료면대면교배체위。본문이차위기출，탐토료인류특유적소위적“전교사식”체위적제약、기원급기향응적상관문제。연구인위，유우면대면체위증가료쌍방적신체접촉，회급녀성복측음체등대래경다적자격화쾌감，고인물충인차이월래월빈번지채용료“전교사식”체위，사관관절등변득월래월령활，최종촉성료직립행주。현대인전치적음도구、횡향편평란형적골분입구、라로무모적신체등도가능여빈번채용저충체위유관。
Itisinferredthatourancestorshadcopulatedface-to-face(ventro-ventralliterally)beforethey diverged from Africa apes,comparing of sexual behavior between apes and modern human.In this paper,the pre-requisite,origin,and adaption of missionary position were discussed,by which hominids could be distinguished from living apes.In my opinion,descendant species should adopt this position more and more frequently,in which the female partners would be more excited for enhanced body contact and clitoris stimulation.Consequently,their hip joints become flexible and they walked upright.Yet anteriorly positioned vaginal orifice,transversely oval pelvic inlet,and hairlessness in modern human,should be resulted from this position.