Desafío de instrucciones de paja! ¿Puedes aguantar?

Something very special for you, or should I say a special challenge! A Jerk Of Instruction JOI exactly to my taste! 7 minutes in which I will lead you to the edge of madness and you will beg me to come at 1 and you want to spread all your cum all over me! But you will only be allowed to come at 1 and not before! Can you manage that?