Sonja is at the Doctors office for a treadmill stress test. She lets her ample assets hang out as she goes topless and steps onto the treadmill. First she tries walking on it without any leads as a warmup. Soon Dr.Betsy places the many EKG lead electrodes onto her chest, fixes the cables and starts the machine. The speed is slow to start but soon the speed increases. Sonja’s big natural breasts jiggles with each labored step. You can see this from all camera angles including a worm's eye view from the bottom up! When Sonja starts tiring, Dr.Betsy checks her BP and her heart sounds with a st... Show more