If you're not comfortable with your father examining your penis, then it is not okay if he forces you to let him examine it. I would tell a teacher you trust about it if it's a problem for you.
penis
Of course you can. as long as you have active sperm.
12 Inches.
.5 in around and 1cm long
Genetics. Sorry.
Sounds normal to a bit on the long side - don't worry about it !
penis growth is something that men have during their "prime" years. which is about(12-23). Now the way your hormones have on your body decide that. But to say the longest penis record now is about 11.6 inches.
20 metres long ?
2 years
Unless your penis is over 12 inches long, it's not "too" long.
1828-1917 this is 89 years
it will probably not grow anymore, unless you are one of those that has long or delayed puberty. during puberty is really the only time that your penis grows noticably