Each players takes turns rolling the dice. Once the die land, the rolling player must carry out the action with their lover. One die gives a BDSM command and the other gives a sex position that are to combined together. It's up to the rolling player to decide how to translate each BDSM act and combine it with the sex position. The second player rolls again when ready to switch to a new position and play continues. 

BDSM equipment is not necessary, but it does make things better! If you don't have any BDSM equipment around, check some out here!