Before Ellie was born, Felix and I fretted about what kind of sister Keira might turn out to be. Would she be jealous? What if she hated the new baby? Would she transform from the sweet mellow daughter we knew into a moody erratic stranger?

Sure, sure - it might sound irrational to you, but I can assure you that we had a foundation for our concerns. My mom always tells me what a sweet and gentle baby I was. Easy to love, easy to care for...until Tom was born. I tantrumed and carried on so much that my exhausted mother had to come home immediately from the hospital. I refused to let her stay anywhere else except with me. My bratty ways overshadowed Tom's newborn needs. If my mom picked up Tom, I had to be picked up, too; if Tom was being played with, I wanted playtime as well. I'm surprised my parents decided to keep me, considering what a pain in the butt I turned out to be!

Felix and I had a lot of worries.

Fortunately, our fears were completely unfounded. Ellie arrived, and Keira immediately fell in love with her right along with the rest of us. "Mei-mei!" she cries, every time Ellie appears. "I wanna hold Mei-mei," Keira demands, wrapping her little arms around Ellie's chubby body. The kisses that Felix and I beg from Keira fall easily and frequently on her baby sister.

As mommy, I can't imagine loving my girls any more than I already do. I had always wanted a little sister growing up, someone to bond with in that special sibling way. Watching Keira snuggle up to Ellie in bed, I feel like my wish has finally come true.

Stark naked. I heard Keira's little voice piping up through the baby monitor, letting me know that she had woken up from her afternoon nap. I walked down the hall, opened her door, and....there she was, sitting up happily in the middle of her bed, totally and utterly naked.

Not a stitch of clothing!

God only knows why, but Keira had decided to strip down to her birthday suit at some point during nap time. Shirt, socks, pants, diaper - she pulled everything off. It must have been pretty fun, too, 'cause she was grinning ear to ear when I found her.

Of course, the best part of these sorts of moments is the bizarre conversation you try to have with your two-year old. "Keira, you're naked! Why are you naked? Why did you want to take your diaper off?" I should know better than to ask such rational questions, much less expect a response.

"Diaper off! Keira did it!"

And as she happily bounced her bare bottom on her big girl bed, I could only laugh.