If you would like to make your teenage son feel special on his birthday, here is a sample template you can use to write a birthday letter to your teenage son.
I love you more than anything and I want you to feel special on your birthday. We have been with each other ever since you were born and I love seeing you grow up. Ever year you grow older, I wish you enjoy until it is done.
If you want to celebrate in a special manner, kindly tell me. I would love to make it happen for your birthday.