It sounds like you want to set up a corporation structure of some kind and pay yourself a salary as well as cover social security and medicare.

I've know a handful of gals to have done this, and they all used accountants for this.  It is somewhat complicated.  I suggest you ask around your area for an escort friendly accountant.

you don't have to set up a corporation, you can fill out the schedule C, all money coming to your bank act must be reported. If you have a business act even better, that way you can keep track of all the income, expenses and bookkeeping. (mileage, hotels, photography, ads, health insurance, phone, internet, etc).  

For now, keep receipts of all your work expenses related, you can find on twitter some professional ladies that prepare taxes for us.  

You will need taxes for 2 years (as self-employee) in order to purchase a home for example.  

I dont mention names for the ladies that do this type of service for discretion... but again... on twitter you can find them.  
On the providers only board you can get this info, or other sites that are for ladies use only.  

Good luck!

Forget corporation unless you want to advertise as Briannadolce, Inc, file details of ownership as a public record etc.  There is also the potential of being taxed as a Personal Service Corp at higher tax rates.   You have to have a board of directors, maintain board minutes, of course, start out with a Charter and Bylaws etc.   Have to file quarterly payroll tax returns etc.   Usually, the only benefit of a C corp or LLC is to protect the shareholders from lawsuits if the corporate shell is properly maintained.  

Just account for your entertainment business on Schedule C.   You also pay self-employment taxes (social security) but at the same rate as combined for employee/employer.