CAGUILERA092007_01.jpgChristina Aguilera CAGUILERA092007_05.jpgNot that this is anything new for Christina Aguilera, but it's always impressive to see a pregnant woman sleek and stylish enough to endure the pain of high heels. X-tina brought her baby belly (and rapidly-expanding chest) to Beverly Hills, still opting for that MILF-in-training look as opposed to glowing-pregnant-lady. Wonder how she'll dress when the kid finally arrives! Think Christina will ever shed her dirrty-ness?