This is a running challenge where I have to run for 30 secs and then rest 30 secs and start running again. I will be running and stopping for 20 minutes trying to hold myself the best. This was a custom video request and a good video for likes to see a woman exercising and then to watch getting tired and breathing hard from running. PS: Microphone on sports bra so will be more clearly to hear me speaking and breathing, also to avoid the loud sound from the treadmill. Katherine De Vil Keywords: Running, treadmill, breathing fast, deep breath, exercise, challenge, sweating, fitness, fetish.