"Women who feels the pearls will go mad with pleasure"...

a stud?  Can't imagine doing anything so dumb.  Interesting to read that having one done can lead to other side effects including gangrene.  Reminds me of the stories of the guys in the emergency room with an odd thing in their rectum.

Well hello darling, long time since I gave you a pearl necklace and more! Miss you!

that if it made sex more desirable for women, therefore increasing the opportunity to procreate, that biology would take over and this would evolve on it's own.