See the Universe of FEMALES .. as per me I don't know how far I am Correct ......XXX - 1. Vegina 2. Butt 3. Breast ...and the whole thing is that every thing is considered with a ratio of BUTT ... B-).
And for whipping , spanking etc ... butt is the right place .
Whatever the age we horny people evaluate the quality of any female by the size of BUTT only ..( of any age of female ) .
I am impressed by this video B-).