Why does it matter? I only ever do quickies with my wife. And with other women I usually cum immediately inside but not say anything and keep going until I cum again.
Buy a dildo bigger than you and play a game. Put your dick up to the dildo and submit to his big cock. You can’t touch yourself in front of that big dick. Turn on porn and you can’t touch yourself as long as that dick is in front of you. The when you are ready get on your knees and suck it off. Then you are allowed to touch and cum. This helped me, I came like 2 min every time sometimes sooner. Now it’s too long my wife begs me to cum.