It seems a lot of sex providers offer massages as well but is there a place where the massages are the primary service and the sex is something that can be negotiated if the lady likes you? Any recommendations will be appreciated. General locations are better than the names of these places since I imagine the establishments would not be approved to offer full service.
Rose SPA offers the full service in Singapore. You can check the detail and reviews on singapore.happymassage.com/massage-yellow-pages/massage-places/rose-spa-12689.html