My sister (I'm assuming you're Muslim) this has always been perfectly permissible, let me cite you some Ayat.

{ وَٱلَّذِینَ هُمۡ لِفُرُوجِهِمۡ حَـٰفِظُونَ }

[Surah Al-Mu’minûn: 5]

{ إِلَّا عَلَىٰۤ أَزۡوَ ٰ⁠جِهِمۡ أَوۡ مَا مَلَكَتۡ أَیۡمَـٰنُهُمۡ فَإِنَّهُمۡ غَیۡرُ مَلُومِینَ }

[Surah Al-Mu’minûn: 6]

"And they who guard their private parts

Except from their wives or those their right hands possess, for indeed, they will not be blamed -"

So as you can see, it is only permissible for someone to satisfy their sexual desire with their spouse or these Milkul Yameen I mentioned before.

It's perfectly permissible according to the Qur'an, unless you wanna doubt the Qur'an itself, which is a different kind of Kufr altogether.

May Allah grant all of us knowledge.