My Arab wife and her curvy friend share my cock

I have always suspected that my stunning Arab wife was fucking her curvy best friend, but I didn't have proof. I got back from the office earlier than usual, and I heard moaning sounds coming from my bedroom. To my surprise, I caught my wife and her best friend fingering and fucking each other's pussy with a dildo. I went from masturbating while watching them fuck to taking turns to fuck their pussies.