Yes, I've been there a number of times in the last five years and, no, nothing beyond a perfectly legit massage. And a good one.
We chatted once, as she was preparing the paperwork for my insurance receipt, and she said she never had any intention of committing insurance fraud, and she was regularly asked to issue dummy-receipts, nor would she cross any ethical lines in regard to sexual services. I'd not asked her to do either, but took that as an admonition.