Almost 4?

How did it happen that my sweet baby girls are almost 4 years old?

How did this tiny 7 pound bundle of snuggly dependence:
















Become this 33 pound articulate, compassionate, wise ball of energy and vivaciousness and fierce independence:


























And how did this tiny, quiet, patient 6 1/2 pound package:




















Turn into this bubbly, sometimes demanding, meticulous, LOUD, almost always endearing 32 pound force to be reckoned with:


























And if my daughters have changed so much in just 4 short years, where will they be in 4 more? I have no idea, but I know it's going to be quite an adventure to get there...