Don't sweat it younger Dude ur going to OK man. Mine didn't do hardly anything until I was already 17. I had all of the changes that you describe, but my equipment didn't seem to be going anywhere and that kind of scared me and made me wonder if I had any manly future. Ha ha ha ha! Sorry, but it makes Me! :- ) laugh now! I started to grow in my package at age 17 and kept growing up until I was between 23 and 24 years old. I'm 24 now and it doesn't seem to have grown in the last 6 months. I got married at age 22 and have an amazing Love Life. My Lady laughed at Me! :- ) because she experienced huge, the amount of growth in that 1 1/2 years. She said that she married a growing boy and laughs. I turned out both long and large...not large average. Hope it is all done growing. Haha! Ur testicles drop down when they are too warm, and pull tight when they are cool. They are built outside the body because they do their best job at about 2 to 5 deg. f. below body temperature. If they get too cool, the sack pulls them close to warm and too warm, the sack drops them away to cool. That's all good on u Man and like an automatic thermostat control. Not many Dudes ever get left out like I was afraid of. Hahaha! You have so much time for change, and I bet that you are going to come together rather nicely from what u describe. We each have our own DNA recipe and we come together in each our own timing and way. If you ever saw how ur Dad is put together when changing at a swimming pool or something like that, you may be similar or even bigger because the males on ur Moms side can add some to that formula as well. Haha! I'm expecting some really good things for u Dude. Just relax feel good about urself, enjoy life, be amazed and smile with what is going to happen a little way down the road. Until then don't worry and just be You! :- ) Me! :- )