I'm a Superhero!

After her bath, Sophia bounds into the living room wearing only her yellow hooded ducky towel:
Sophia: I'm going to rescue somebody!
Laura: Are you a superhero?
Sophia: Yes! I'm a superhero!...
Me: Is that your cape?
Sophia: Yes, that's my cape. I'm a superhero!
Me: You're a naked superhero.
Sophia: No, I'm not. I'm wearing a cape! Whoosh!...