Sippy Straw Cup

Lauren is growing up so fast. She drank from her very first sippy cup with a straw tonight. She does better with the straw than she does with the actual sippy cup. I was at work and missed it, but Justin took pictures for me (and for the blog...good job Justin!) He said she drank the whole cup of water. Is it me, or does she look very mature sitting there drinking from her cup with the straw?