61 Marco 10 vs the forces of evil » by CHAOSCONTROLFREAK455 This is basically Star vs the forces of evil exept Marco is the main character and has the Omnitrix and he also has a harem but completely oblivious to it like classic harem animes (ON HOLD)
T, English, Romance & Adventure, chapters: 18, words: 31k+, favs: 99, follows: 98, updated: 3/30 published: 1/7/2021, Marco D., Star B., Janna, Azmuth
253 Ben 10 and Star vs the Ultimate Forces of Evil » by VanguardLuard The story of Ben and Star continues
K+, English, Adventure & Sci-Fi, chapters: 38, words: 94k+, favs: 218, follows: 186, updated: 2/23/2022 published: 1/18/2019, [Ben T., Star B.] [Kevin, Gwen T.]
30 Star Vs The Omniverse » by Dralcorn After an attack from Eon, Ben Tennyson finds himself in an alternate universe, unable to return to his own. With the help of the Princess of Mewni, Star Butterfly, and her human friend Marco Diaz, Ben must find a way home, before the villains of his world are able to take over, all while trying to keep from being shot with a stray narwhal.
T, English, Adventure & Supernatural, chapters: 4, words: 10k+, favs: 56, follows: 63, updated: 6/25/2019 published: 6/5/2019, Ben T., Star B., Marco D.
410 Ben 10 and Star vs the forces of evil » by VanguardLuard When Star gets sent to earth she finds herself with the Tennyson family and makes friends with Ben Tennyson and share some wild adventures.
K+, English, Adventure, chapters: 72, words: 186k+, favs: 327, follows: 273, updated: 1/18/2019 published: 4/22/2017, [Ben T., Star B.] [Gwen T., Kevin]