My Little Pony: Friendship is Magic
And Dusk Shine! (The first time I saw this name I said "AAAAAAAAAAAAAAAAAAAAAAI seewhatchadidthar" out loud. On a quiet bus.)
Twilight's forehair things get cut in the Spring and gradually grow to her shoulder's in the Winter.
Twilight seems a complete stranger to "romance" or just "boys" (and so the opposite could be said for DS). I bet the two would constantly screw up because they'd take all their relationship advice from Cosmo like magazines and the hilarity would ensue. Eventually they'd become comfortable by exploring their similar passions and possibly developing into more.
But I feel like they'd be struck by a weird sense of vanity upon first meeting. "He's/She's so handsome/beautiful!"
Twilight Sparkle (and Dusk Shine) belong to