My Milkshake Brings all the Babies to the Yard

I started Jillian Michael's 30 Day Shred today. The workout is the perfect length of 20 minutes and a cycle of strength training, abs, and cardio. I discovered that I cannot do the lower ab exercises yet. More amusingly I cannot do jumping jacks without holding my breasts against my body. Holy Cow! they weigh a million pounds. I need a serious sports bra. Do they make those in a 38DDD?