Vanya comes home to discover Her new babysitter, Sierra, hasn't done a good job...at all. So, Vanya being the devious Mistress that She is, strips Sierra to her bra and panties, binds her with tape at the ankles and wrists, connected to the headboard, and challenges Sierra to remain quiet while Vanya tickles her. She tickles her belly, bellybutton, armpits, hips, and even her barefeet, noting that Sierra has dirty feet, but no matter, Vanya teases and away, while Sierra squirms, thrashes, and fights to remain as silent as possible. If Sierra wakes the baby, there will be hell to pay!