Hi i am nearly 17 years old...when i see any bad scene or a porn movie my sperm releases automatically. I also got diabetes problem but thats in control. But i am very much worried about the sperm releasation problem.. i have stop doing hand job but whenever i do it sperm releses very quickly in less than 10 to 15 seconds ..why does this really happen??? Please tell me the best way to prevent this problem.....