exclusively penetrative sex position basic sex position https://en.wikipedia.org/wiki/Missionary_position https://www.wikidata.org/wiki/Q219561 A sex position in which the receptive vaginal partner lies on their back and the penetrating partner lies on top of them so that they are facing each other when engaging in vaginal intercourse. Adam and Eve position basic coital position mamma-poppa position matrimonial position missionary position vaginal sex position 68 Sex Slang Words You Should Know