hybrid, how much experience do YOU have. If a fair amount, there's nothing wrong with providing him some guidance. (Once a scene has started though, take his lead lest you do 'top from the bottom.') Afterward, a conversation about how it went and what you would have wanted differently is also okay. If he has dominant tendancies, he will learn very quickly.

If you don't have much experience and are hoping to learn together, then I would indeed go with preparing your abode with some toys, greeting him on your knees, offering yourself... perhaps with "How may this girl (or slave) serve you?" and being for him what you want to be. Again, if he has it in him to dominate you, he will easily slide into the role. Thereafter, have the conversations, discuss what was good for you and what was uncomfortable and certainly what was bad.

If this doesn't work, there are other approaches we can (all) discuss.

PS. Have a safeword. A way for you to initiate a hold or stop activities. Two reasons. One, if something happens you just can't abide... or if you get hurt and really need to stop... but also for him. So HE knows that you are in fact okay and he can continue.