You don’t need to tell the bank you’re an escort, you can go down as many different things, digital creator, masseuse, actor, freelance creative producer, and there’s many more if you Google it!
If this is for a business account they shouldn’t have any reason to question it, I have had all types of expenses come out and I don’t know what they see on their screen but they never question or flag up my X amount of money I put in the bank. Obviously lockdowns aside, you have to think smart as they may if questioned cash payments. But with things going back to normality, you shouldn’t have a problem. The main thing is declaring your tax so if I were you I’d get a financial advisor or an accountant to help with the technical side if things