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Cassandra is crazy about Finn and Frank.
Cathy has a soft spot for Philip, and also Felix.
Phineas holds a special place in the heart of Cassandra, and also Ferb.
Candace finds joy in being with Fred and Foster.
Phineas Cassandra, and also Ferb.
Candace is emotionally attached to both Finn and Ferb.
I
hope you find these variations helpful!
Phineas and Ferb the Movie Candace Against the Universe