I have two teenagers and a dog. Guess who greets me at the door every day when I come home from work?
They're great kids, and like Dean said, squeeze all the joy you can out of life now, because before you know it they're grown up. Not that they aren't still loveable then, but they have grown-up interests and distractions. Enjoy every stage. They'll always be your kids, no matter how old or wise they are.
Cap