Cadance has a special Hearth's Warming gift for her and her husband, Shining Armor. When the pair are invited to a holiday party held at the Castle of Friendship and Cadance forgets something at home, Cadance decides to share her gift with everypony.
You like using this word. I like that you like using this word! It has tasty implications.
Wouldn't be surprised if Rarity propositioned Cadence and Shining for stud services in the epilogue.
Pfft, all that showing off for naught.