Emily is hosting a pony-themed sleepover this time around, and the best part is that a real, livepony will be there. Ms. Sullivan is bringing over her pony, Ladybug, so the girls can learn to ride and take care of her. Emily is so excited! She loveshorses and knows lots about them from all the horse books she's read. But her friends don't seem to be taking things seriously, and Em is getting a bit bossy about their preparations for the party. When the pony finally arrives, it turns out it's Em who has the most trouble riding her - which isn't fair because she has all the experience! But practice makes perfect, as the Pyjama Gang find out!