It’s a scam. Stuff like this gets posted daily at r/scams & r/sextortion. They’re probably not in the US so a lawyer won’t be able to do anything (also, what both of you are trying to do is illegal in most of the US, if that’s where you are, so either of you getting a lawyer is ridiculous). They’re also not going to call the police because they are trying to blackmail you. None of that even makes sense. Block these people & remember to think with your brain & only your brain.

Now that you’ve shared that you’ve given money to scammers, recovery scammers may reach out to you telling you they can get your money back for a fee, but they are also trying to scam you.