"Penetrative sex" refers to sexual activity involving the insertion of a body part (such as a penis) into another person's body (such as the vagina or anus) for pleasure or reproduction purposes. Full definition
Female lubrication also prepares us for penetrative sex with a partner, but that lubrication builds over time as we become more aroused. (functionalpelvis.com)
With flexible wings that tuck under the labia while Eva II sits on top, you can have clitoral stimulation during penetrative sex. (dameproducts.com)
A less resilient vagina is more easily traumatized by penetrative sex. (anti-aging-today.us)