Peace zakir.
The word "sex" tells us it is an activity done by sexual organs.
I have got an easy point to make first, then one can draw their own conclusion:
The penis is a sexual organ as,defined by Science and nature/logic.
The vagina is a sexual organ also defined by science and nature/logic.
The anus is not a sexual organ as defined by science and nature/logic. One could also say the same for the mouth,the nose ...etc.
Now,regardless of Qoran , hadith or any other view what does the instinct tell us?
So draw your own conclusion,mine Is of the view that my instinct strongly tells me that GOD has assigned organs for specific functions. I prefer to stick to what GOD has made . This apply for the mouth ,nose or anything else one may substitute for one or the other.
One may ask me a specific question of is it halal or haram? My answer as described above is a simple one ,the anus is not a sexual organ.
For those who argue otherwise, they argue for desire and choice, not for necessity or function.
GOD bless you.
Peace.
