100 kisses or get whipped

Princess Jessica is 16 years old and she is spoiled little brat. She requested from her daddy that she wanted 2 men from village to be her slaves.
2 men are taken and shackled in chains in her bedroom and they must kiss her toes 100 times each day. If they fail they are taken below in dungeon and punished with 100 whip lashes.

They are immobile in place so they catch every chance they can get to reach and kiss Jessica's toes to fullfill their daily quote.
Most of time Jessica's toes are bit too far so they have to really stretch...