We used two, six sided dice. First roll determined length of lockup, 2-12 days. At the end of that time my wife would roll again. Roll a 2,5,7 or 12, no release, roll again for additional lock up .Roll doubles to get 4,6,8 or 10 is keyholder choice. Roll 4,8 or 11 full orgasm. Roll 3,9 or 10, ruined orgasm. Roll 6 prostate orgasm( finger or toy). Obviously, there are almost infinate possibilities with more dice or by adding punishments along with the rewards as possibilities.