The Canterbury Tales: The Wife of Bath's Prologue Lines 121-140 Summary

Why were the genitals made, and those by such a perfect maker (God)?
They certainly weren't made for no reason.
Although some may try to explain the genitals away by saying they're meant for urinating, or for telling the difference between a male and a female, experience says otherwise.
In fact, they are made for the purpose of pleasure and procreating (making babies).
Why else do writers say that a man should yield the marriage-debt (sex) to his wife?
How else would he make the payment without using his penis?
Therefore, the genitals are made both for urinating and for procreating.