Master/slave kink?

Okay so I've never been "into" bdsm, or anything near that, but this guy I've been talking to wants to have this type of a relationship/sexual experience with me where he's my, well, slave to to what I want with...

I'm all game for giving him the pleasure he wants (I'm a top and hes a bottom), but how do I start things off the first go at this? I've never really been the "dominate" type, so don't know how to really initiate and keep things going lol