In case anyone wants a definite list of girls Spike has and will include in his harem, here it is.

Twilight Sparkle
Rarity
Applejack
Rainbow Dash
Fluttershy
Pinkie Pie
Sunset Shimmer
Starlight Glimmer
Trixie Lulamoon
Gloriosa Daisy
Lyra Heartstrings
Bonbon
Ember
Skystar
Gabby
Maud Pie
Limestone Pie
Marble Pie
Apple Bloom
Sweetie Belle
Scootaloo
Diamond Tiara
Silver Spoon
Celestia
Luna
Spitfire
Zecora
Coloratura
Sapphire Shores
Songbird Serenade
Fleur de Lis

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