I definitely have a handful of guys I thoroughly enjoy spending time with more than others. I DO enjoy myself with ALL my clients, but not all can relate to me or have a certain connection and "vibe" like I have with some of my ATF's.
Some might bring me lunch or dinner, or might tip me extra, or they might simply feel more comfortable around me, but in return I've done things like discounted donations and extra time towards our sessions and other awesome little things like that.
I have a lot of guys who visit often/regularly, and a majority of those ARE my ATF's because of the amount of time we've spent together and the things we have shared (besides a good fuck LOL)