What about sex

I man, you woman, why?
to reproduce or have fun or
the answer is inexplicitly both
why do some look at sex as dirty?
do people look at the heart beating as dirty?
is breathing dirty?
is any functioning organ dirty?
it is just a part of life isn't it?
each sex organ is just an integral part of the others opposite sex organ
to fully function they must be together
but it is so beautiful for two of the opposite sex to be entwined isn't it?
the love that goes with it makes it more beautiful beyond words doesn't it?
if making love doesn't put a smile on your face, what will?