>>12533478It's always being produced. Of course the quantity that you create depends on how frequently you ejaculate. So a guy who cums every day will produce lots more semen than someone who never does. However, the single cumshot of a guy who never cums will contain more semen than that of one who does frequently since he has much more stored.
Also consider that humans have a low rate of semen formation compared to other mammals (especially apes). Therefore if you cum twice in a day your semen levels drop to 20% of that if you hadn't come