Why does Pinkie Pie have a strong relationship with Rainbow Dash? - Sugarcube Corner - MLP Forums

I always wondered why Pinkie Pie and Rainbow Dash have such a strong friendship?

Pinkie Pie on MLP-FanFic-Is-Magic - DeviantArt

Each of the Mane 6's profile and relationship with each other. : r/mylittlepony

Action Figure Insider » DISCOVERY FAMILY CHANNEL INTRODUCES THE NEXT MAGICAL CHAPTER IN THE MY LITTLE PONY UNIVERSE WITH BRAND-NEW SERIES MY LITTLE PONY: PONY LIFE #MLP

1986176 - safe, cheerilee (g3), pinkie pie (g3), rainbow dash (g3), scootaloo, scootaloo (g3), starsong, sweetie belle (g3), toola roola, g3.5, newborn cuties, once upon a my little pony time, babies, baby

Pinkie Pie: Toilet Diver - Fimfiction

Pinkie, I'm So Sorry - Fimfiction

Equestria Daily - MLP Stuff!: Discussion: Pinkie Pie Joins You For a Prank

Pinkie Pie Fan Club - Page 123 - Fan Clubs - MLP Forums

22942 - dead source, safe, artist:volmise, pinkie pie, rainbow dash, earth pony, pegasus, pony, g4, candle, fanfic, female, lesbian, mare, night, prone, reading, ship:pinkiedash, shipping, smiling, sugarcube corner, tea - Derpibooru

Has anybody figured out if Pinkie Pie is adopted or not? - Quora

My Little Pony: Friendship Is Magic S4 E12 Pinkie Pride / Recap - TV Tropes

Steam Workshop::MLP ragdolls

Just out of curiosity. If you lived in Ponyville wich pony would you be be best friends with? My choise is very clear, I'm so shy irl. : r/mylittlepony

PinkieDash Fan Club - Page 2 - Fan Clubs - MLP Forums