Mistress Maryse's Endurance Challenge (2)

Mistress Maryse's Endurance Challenge (2) by Bondageman

"Now carry on stroking just as you were doing until the clock changes again (so that will be in one minutes time), but this time I want you to beg me to let you cum! I want you to grovel. Tell me just how much you want to cum and what just what you'd be willing to do to earn that orgasm."