Twin Sisters

Twin Sisters is a type of Trainer that first debuted in Generation IV. So far, they have only appeared in Pokémon Battle Revolution.

Generation IV-introduced trainer classes
Diamond and Pearl
Artist \| Belle & Pa \| Cameraman \| Clown \| Commander \| Cowgirl \| Cyclist \| Double Team \| Galactic Grunt Galactic Boss \| Idol \| Jogger \| Poké Kid \| Rancher \| Reporter \| Socialite \| Tower Tycoon \| Veteran \| Waiter Waitress \| Worker
Battle Revolution
Bug-Catching Man \| Challenger \| Close Siblings \| Colosseum Leader \| Colosseum Master \| Cool Beauty Cute Maniac \| Electrifying Guy \| Future Girl \| Girl In Love \| Hardheaded Girl \| High-Tech Maniac Hiking Club Member \| Hiking Girl \| Icy Guy \| Joe Groupie \| Leader-in-Training \| Little Queen \| Lone Wolf Mature Couple \| May-December Couple \| Muddy Boy \| Ordinary Guy \| Ordinary Lady \| Passionate Man Passionate Rider \| Picnic Girl \| Pikachu Fan \| Poison Tongue Boy \| Pokétopia Master \| Sashay Fan Club Sci-Fi Maniac \| Shocking Girl \| Sightseer \| Steel Spirit \| Stubborn Boy \| Swimming Champ \| Swimming Club Member Three Brothers \| Three Sisters \| Tomboy \| Traveling Guy \| Traveling Lady \| Twin Brothers \| Twin Sisters \| Youthful Couple