Biting her lip

She bites her lip and tilts her head to view
Her feet, while he presides and he observes
The errors she's committed and will rue;
But have her mistakes always just occurred
To give him opportunities? They're deep
Enough to warrant punishment at once;
But, since such remedies help her to sleep
With beatific smiles, after the dance,
She dreams she may well have to entertain
The force he'll exercise, which she'd prefer;
So, she presents herself and will remain
Indebted to him as he finds a cure
For all the wicked ways, that she'd admit
Give her good reason to bite at her lip.