sexual enhancement with wife...

 I have a question to which I hope to get an answer from you. I was wondering if it is permissible for a man to take a 100% natural herbal medicine to enhance one's sexual relationship with one's wife and which also lengthens the size of a mans penis during erection. It is simply to have a healthier sexual relationship and to satisfy each others needs. As we all know there are many other available natural products allowed in Islam to fulfill this need. It is also said that black seed oil and honey are beneficent to a healthy sexual relationship. And Viagra is also permissible despite it having many chemicals in it (It is also said that it lengthens a mans penis and widens it). So my question is...Is it permissible in Islam to take a 100% safe natural herbal medicine to obtain a longer and better sexual relationship with one's wife and to lengthen the penis in size for the purpose of satisfying each other? I would deeply appreciate an answer brother.

In the name of Allah Most Merciful Most Compassionate

I pray you are well and in the best of health and iman.

If there is no harm in taking the medicine, then it is permissible. But one should keep in mind that today sex has become an obsession and a goal in itself, in Islam sex is a means for children and satisfaction for both husband and wife and not a sport.

And Allah alone gives success.