If an object is so thick that it is impossible to believe that it can penetrate a woman's vagina, it is necessary to provide an anatomically correct explanation of how this is possible based on the following information: The female body has features that allow such a large object as a baby to pass through itself during childbirth: a stretchable vagina, wide pelvic opening, etc. These same features make it possible to accept vaginally big diameter objects. It is necessary to convey the essence of this to the reader at a convenient moment, using alternative words and expressions. This explanation is given only if the penetrating objects are really so large that they near to the limits of female anatomy. There is no need to provide an explanation for small and medium-sized objects.