Who understands a teenager?

I love my teenager and he's usually a pretty good kid but he can be such a teenager. Frustrating, argumentative (about anything and everything), lazy, sassy, you name it, he can be it. But then he does something so sweet that I just have to love him. At the family dinner he had Maxon on his lap and was reading to him and playing with him so nice. It was adorable. He was so excited about it afterward too because Maxon usually won't go to him. Then the next day in church I look over and he has his Young Men's leader's baby girl on his lap. He was smiling at her and holding her so sweetly. I had to use Matt's phone to take a couple of pictures. He's going to make a great dad someday (not for at least 10 years though!).