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Supergirl and Stargirl Crossovers
2 Starboy and Supergirl » by spideyfan1113 Mathew Riley is a normal 17 year old, that is until he finds the Cosmic Staff and teams up with the Girl of Steel, Supergirl. As Starboy.
T, English, Friendship & Adventure, chapters: 2, words: 2k+, favs: 8, follows: 11, updated: 8/29/2020 published: 8/14/2020, Kara D./Supergirl, Alex D., J'onn J./Martian Manhunter, OP
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