Hi James!
Thanks for visiting the Moms Panel with your great question!
Your girls just may be lucky enough to get a chance to meet Terrence during your next visit. Terrence is indeed one of Tinker Bell's Fairy Friends who do appear daily with her in
Tinker Bell's Magical Nook in Magic Kingdom Park. You'll find this location near the Adventureland Veranda.
Upon arriving at the Magic Kingdom, be sure to pick up a Daily Times Guide which will list all Character Meet and Greet Times and locations for the day. Tinker Bell appears throughout the day with one of her friends - either Vidia, Rosetta, Silvermist, Fawn, Iridessa or Terrence. Your best bet to ensure a meeting with Terrence would be to pop into Guest Services just inside the park's gates after your arrival. They may have an idea of which fairies will be appearing alongside Tinker Bell for the day or for the week at that time.
Be sure to pass by the Adventureland Veranda area multiple times throughout your day and keep your eyes open for your girls' favourite Fairy Friend!
If I can be of further assistance to you, I sure hope that you'll visit me again soon James!
Wishing you a simply Magical time at Walt Disney World!
Kirsten