The Revenge of the Foal-sat

At the request of Twilight's parents, Cadence comes over to foal-sit for them again, but she quickly finds out that Twilight has a little devious plan in the works just for her.

Twilight's parents ask their foalsitter, the young Princess Cadence, to watch over their filly as they go out for a night of fun. Cadence tentatively agrees, figuring that it's just going to be a night of quiet studying, but she quickly finds out that Twilight has other plans for her.