Bittersweet- Colin is Four

My sweet baby boy turned FOUR on Sunday.  It's wonderful and sad at the same time. I can't remember my life before him, yet I want to freeze time so I can keep him this age forever.  I love watching him grow and learn.  I can see him thinking and processing things I tell him- most of the time, it's so neat.  It's amazing to watch this little person discover new things- I'm just so lucky and so in love with him!
Here are some pictures from the weekend and some favorites of mine!