Hi, Im a 15 year old boy. I'm really worried about my penis! My penis size is 4 inch when hard, is that normal? and when i jack off I only last for a minute or so Please help
You're still quite young and will probably keep growing; average for an adult is about 5.5in. I was around that size when I was that age and I'm not about 6.75in. As for you cumming very quick when you jerk off, try the stop and go method and jerk off as much as you can in a day. It'll build up your timing so you'll last longer when you go to have sex.