Ep 6. Forever Filly

Rarity's little sister, Sweetie Belle, is growing up and beginning to pursue her own interests, leaving Rarity feeling left behind. In an effort to reconnect with her younger sister and recapture their special bond, Rarity plans a special sisterly bonding day filled with nostalgic activities from their past. However, as the day progresses, Rarity realizes that Sweetie Belle has outgrown some of their favorite activities and has developed new interests that Rarity doesn't quite understand. Feeling frustrated and hurt, Rarity must learn to accept that her sister is growing up and that their bond will always be strong, no matter how much they change. Meanwhile, Twilight Sparkle and the rest of the Mane 6 team up to plan a surprise for Rarity's special day, hoping to show her how much they value her sisterly love and the impact she has on their own friendships.