Simple method that works well.
1.lay on back knees up, feet flat on bed/floor.
2. Shea Butter for lubricant on non silicone type model.
3.Nipple Stimulation every so often and definitely when orgasm is close if you enjoy doing this.
4.Insert toy then do nothing, DO NOT DO ANY PC CLENCHING, just lay still and let the toy do the massaging, it will take a while but the sensations continually build up until the orgasmic moment in which your body will loose control and start dry orgasming uncontrollably in pure bliss, when it’s time to start clenching your body will start the pc clenches automatically and these involuntary clenches that start on their own when this happens is an orgasm and not the manual style clenching.
The O that happens using this technique feels fantastic and last for several minutes! Works for both prostate and peridise toys.