Mahou Shounen Majorian

Japanese Title: 魔法少年マジョーリアン

English Title: Magical Boy Majorian

Plot
Iori is a timid, feminine boy. Masaru is an aggressive boy who leads the other boys in bullying Iori. One day, they encounter a pair of strange extraterrestrial bunnies who turn them into magical girls in order to fight aliens that are invading their town.