During the middle of an innocent fake head-butting session (is that not how you bond with your baby?) this little one laughed for the first time. And then couldn't stop.
They say laughter is contagious, and this two-and-a-half-minute video of Dad's elation is definitely proof. "I love it! I love you!" he repeats, making clear he's smitten (the first laugh helps make sleepless nights and dirty diapers all worth it). It looks like this duo is going to get along just fine. Definitely worth a watch!
What was your baby's most exciting milestone?