This Disney/Pixar costume can easily become a group couples costume by having your beau dress up as Nemo!
Marlin, Nemo, and her new buddies Hank, Destiny, and Bailey all become members of Dory's finned "family" because of her cheery personality, contagious smile, and her ability to finagle her way out of sticky situations, the Dory-way of course! She may have lost her mom and dad when she was young, but she's gained tons of fish along the way who really love and care about her. You can really get into character by pretending that you only have a 10 second memory too.