Lucky is good, been a couple of times alway left a "satisfied" customer. It is an easy first stop on arriving. It is small the the gurls are willing and able.
also a nice little one I had lots of fun at off 4 sukumvit 5 Alley, on the back right had side, they normally hang out by the street to drum up business. The alley is across the street from the Fortuna Hotel (if that is what it is still called)
also over behind Soi Cowboy is some nice shops that had a few LB's
But Cassanovas is a good first stop, just be prepared they are a little aggressive.
Maybe not always, but a rule of thumb, if they are super aggressive (in a nice way) to you (like grabing arm, or standing in front of you to block your way) in front of massage shops on the street and are NOT wearing a uniform like the other girls, they are probably LB's. Anyone else feel free to chime in.
There are also several nice LB bars to go to in Nana and Soi Cowboy