Or sit your "Dom" down and explain to him that your simpley not ready for this kind of thing (now,yet or ever) and or are uncomfortable with it and or have no desire to engadge in such activities; which ever the case may be for you.

Comunication is key and not everyone can allways handle or has the patience and imagination nessesary for taking on the onis of dominion for another individual in a bdsm capacity.

It simpley could be that this is not your cup of tea at this point in time.