This is normal guy stuff! Something would be wrong with you, if both your sacks were the same size/even. I would advise all young people to buy/check out a book from your library, or book store, on the male body. I bought both of my children books that explained how their bodies are made/function, and they loved it! I purchased a book for myself, that explains all those imbarrising questions that we don't like to ask people. Have a nice day!