The first point are the particular condition of the girl , but for a regular girl would be the mid size between regular extrem sizes , the mid point between 5 and 8 inches lenght , let say 7 inches and girth any over at least 5 inches .
Girth don't hurt any girl and much less lubricated .
Lenght it is a problem for many of the girls special in hard and deep sex with out any control of the side of the man , during ma cum moments and other times .
So are special girls for everything with large expand vagina lenght an not big expand capacity , because regular size or vagina standard flacid size is around 4 " lenght , girth any ( remember a baby ) ,