all males are born with a foreskin just as all of your friends. they must have been cut as a baby

and now see that you still have your skin. If you can skin your pecker skin back when you pee

so it looks like theirs.  Tell them that they had a foreskin and it was chopped off.

 

You are a normal young man, enjoy having a foreskin, mine's gone but my friend still has his and I do miss mine