If you are interested in the FS massage side of things then you could look at going to Touch of Class. They are a discreet massage studio and escort service with many beautiful girls available to choose from. In my experience it's been hit or miss. 2 out of the 3 times I've been there I had a lovely time with the ladies, whereas one time I had a very mechanical and bored provider, so really YMMV.
Essentially you walk in, pay a door fee depending on the amount of time requested, then the ladies are brought out to meet you one at a time. Once you make your selection, you are taken into a small room with a massage table and the provider joins you shortly thereafter. Everything that happens after this depends on your wants and the size of your wallet, since the door fee is just to get into the room and the ladies work on gratuities. Each provider has slightly different rates but typically you're looking at an additional 100 for massage+happy ending, 150 for cbj or bbbj (depends on the provider), and 200 for FS, all on top of the door fee. So if you're looking for a 1 hour FS experience you're looking at dropping close to 300 by the end of it. While the prices are far higher than most backpage providers, I've still enjoyed myself a lot for the most part. The ladies there give great massages and have various oils to use if you desire. Unfortunately, I haven't been there in some time and the ladies I've seen no longer work there, so I can't comment on any particular provider.
http://touchofclasskingston.com/home.html
They have two locations, with one being downtown on Princess Street. It's open much later into the night and usually has more providers working, but the entrance backs right on to the busy street. Thankfully it's still a rather discreet entrance. The other location is out in the west end tucked away in a quiet commercial hub. This location is only open until the early evening, has only one or two ladies working, but is far more discreet. Reception is usually pretty helpful and so you can always give a call to find out who is working where and when.
All in all, it's not a bad time if you're comfortable spending more than the usual but also looking to avoid the potential sketchiness on backpage. It's very much a hit or miss kind of place in terms of how great the service is, but overall I'd say its worth trying out at least once to see if it's your cup of tea.
Hope that helps!