Well, my multiple orgasms are intense and pleasureable, but ever so slightly less so than a full blown, mind bending, cum shooting orgasm. I find that they have jsut the opposite effect, rather than exhaust me, they seem to give more energy and leave me wanting more. You shouldn't lose your erection by having these orgasms, because the physiological part of an orgasm isn't happening to trigger erection loss and the refractory period. As far as the precum, some guys do, some don't. HOWEVER... you'll probably find that when you get into the edging and master the technique or multiple orgasms, you may start precumming. I've taught a few people these techniques, and some said they never had precum until I showed them the techniques. Stay well hydrated, that seems to be a big factor. My BF and I were together last night for a lil "knockin boots",and I must have leaked like 3 tablespoons of it before we got to the main event...lol Shoot me an email if you want to talk more or have any questions...