After Anon's arrival in Equestria, it was decided that Ms. Cheerilee would act as his guide and teacher while he gets adjusted to his new life. Neither of them are happy about it.
A new bully strikes fear into everypony at Ponyville Schoolhouse, and her name is Dinky Doo! She's the baddest of the bad, and it falls to Cheerilee to set the filly straight before it's too late, at least according to Dinky herself.
When Twilight accepts Cheerilee's request for her to substitute teach, she quickly realizes the topic is "the birds and the bees". So, not wanting to let down her students, Twilight attempts to teach the subject to the best of her ability.
Celestia and Luna are having trouble bonding. They decide to hold a competition with hopes of rekindling sisterly love. They gather their teams and engage in a spectacle for the ages.
Cheerilee is trying to get her mind off her encounters with Princesses Luna and Celestia. Unfortunately, there's always another princess. And of course she's been drinking.