...you can deny any knowledge of the hobby and stand by the fact that you would never participate in such a thing and you're just a random victim but unless your SO/employer is a complete fool, at the very least, a cloud of doubt will linger for some time. If the extortionist has more info and can link you to the hobby, you may be exposed and now you will also be a liar in their mind, leaving you without a shred of credibility moving forward.
If they don't have further incriminating info, then worst case, you may loose your ability to participate until the cloud of doubt has evaporated.
Personally, I wouldn't call it a scam in the context that there is no real threat. It's a shakedown, clear and simple. The part about showing up is probably bullshit but what extent there is to your liability is only for the person at the other end of the shakedown to decide. If you think risk is going away after you send them $1500, you are delusional, regardless of what they tell you. Even if they are as convincing as the gal you sent your info too initially was, they will NOT throw away/destroy your info. About the only thing that will happen when you send them money is that they will know they have found a source of money going into the future. The only part they haven't figured out yet, is how much they can get out of you before you take this to LE. At that point, you'll probably find that the source is coming from out of the country and you're fucked. Best case scenario, its a crackhead, pimp or ex-boyfriend of the hooker and maybe they'll give up, get shot or OD at some point.
Best thing to do is ignore and hope they focus their attention on the next mark. Otherwise, you've got 3 choices. Go to LE (potentially lose job/family etc), pay them now and wait until they ask for more money or double down, engage and try to uncover who they are and then deal with that in choice #3, part 2. Simple as that.
Two things I'm sure you have realized at this point. Get a burner phone, NEVER host a provider in your home and NEVER give out personal information if you've got something to lose such as a job or wife.
The good old days are behind us folks.