Celestia feels that it's high time Twilight be introduced into the more mature workings of being a princess. Which includes entertaining female royalty. Needless to say, Twilight is in for a rude awakening.

Twilight asks Sunset to help her out with an experiment of hers.

Twilight isn't exactly sure about her new babysitter. She seemed perfect in every way. But Cadence surprises her by giving her some advice she never thought she'd receive.