The four denial sluts were only going to meet up for drinks and to chat about their shared kink, until Katie dared them all to an orgasm race back at her place.
Only the first one to get to the edge could cum, the others would just edge and be denied until they met again.
That was two years ago. They still meet every Friday, and once a year, on the anniversary of their first meeting, they all race and can all cum. But for the one who gets there last, it’ll be her only orgasm of the year.