The friendship between Chelsea Owens and Kate Foster began in Double Trouble: The Final Year's first book episode Senior Year. 

Chelsea & Kate
General Information
Intimacy Level Friends
Friendship Started Senior Year 

Friendship HistoryEdit

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  • Chelsea and Kate's mothers are friends.
  • Chelsea is also friends with Kate's twin sister, Allison.
  • They both boy-crazy.
  • They both graduated in the final episode of DT: The Final Year.