It's not rape if you pay them.  In fact, if you wait months, it's child support .
What are you saying here?  Do you think that by paying, a rapist somehow earns the right to have sex with a woman?
It's just my opinion and I'm not saying it as a joke.
If you had meant it as a joke, that would be one thing, but it sounds like you actually believe this.  While there are some women who choose to earn a living through sex work, no woman deserves to be raped, no matter your intentions.  Just imagine if it happened to you: it's a violent assault and should never be encouraged.