This could be part of the Affiliate Promotion Pages, a simplified version of what this may look like can be found here.
If you do not wish to appear on other sites, tick the box labelled "Other Sites: Only show on AdultWork.com" from your Edit Profile page.
If your content is being displayed elsewhere outside of these affiliate pages, and you have not opted to allow social media advertising, you should pursue the issue with the website owner who is displaying your images. How does this happen?
If it is not possible to locate a contact form or email address, use a Domain Lookup / WHOIS utility to find who owns the domain name and go from there.
Before Verification Photos were set to private by default, some people (mainly escorts) had theirs posted to punting forums. We had requested that forums like UK Punting stop showing images from our members but they refused and requested that the owners of any images displayed there contact them directly. If you have been unfortunate enough to be subject to this, please complete this form to replace your current verification photo and ensure it is not publicly accessible.