Young Scientist

Yesterday, when I reached home. Yang came out from his shower and all of sudden asked me, how come boy got 2 balls, very irritating leh, can don't want or not. I keep laughing, I told him if you don't want the 2 balls hor, you will become eunuch...He said arh, than he told me, if take out the 2 ball ball, will become spermless, because the balls which called the testis contain the sperm.... Wow!! He know the word "testis" leh..."jio kiang" Wahahahha....Seriously, I was thinking in school they taught all these already meh??....So is the young scientist book which I subscribe for him and he read and understand and he show it to me. Than he told me about the the sperm meet the egg will become a baby. So smart of him right?!....wahahhaha....He still show me where is the womb, the vagina, penis and testis.. He know all these.....Wahahha.....I read the young scientist book together with him as well, very interesting lor....I have a Young Scientist at home now...Wahhahaa