For Brenda, Aidan's sex change challenged her own identity. "It was very emotionally difficult," she says. "I'm an identical twin. Can you take that away from somebody?" But Brenda soon realized that even though Aidan's outward appearance was different, their special bond would always be the same. Brenda now looks at the bearded man sitting next her and sees only her much-loved twin. "Do you [still] feel identical?" Oprah asks. Brenda smiles and answers with conviction, "I feel absolutely identical."