I’ll risk it and take this as a legit question.
Rape fantasies are not uncommon. In the ‘scene,’ it’s referred to as CNC (consent/non-consent). There’s nothing wrong with it’s. It’s not usually related to any kind of previous non-consensual acts. Becoming highly sexual at 12 years old is not uncommon. Where hypersexuality may be an indication of someone having been molested is when it happens earlier in childhood.
That said, if you have concerns about it, it would be good to explore them with a professional. They won’t think you’re weird for any fantasies you have, or dreams. Just be careful of a therapist who promotes ‘repressed memory syndrome,’ a non-existent diagnosis that quacks commonly used years ago, and which caused untold damage to families.