Thank Halogen for your info
we have tried without manual genital stimulation....it feels like its going to happen but it never does.....you have to use fingers for that "technique"....alot of pressure has to be applied with two fingers....you'll get a weird burning feeling in the head of your cock.....i never got any further than that.....the best way to do this is get on all fours...your partner uses index and middle finger....(use lube, and a condom...it may get a lil messy)...insert fingers as far as possible and apply down ward pressure in a "come hither" motion
I'm not unaccustomed to having fingers etc in my arse and recall the 'discomfort' when pressure is applied to the prostrate although I did not realise thats what it was.
I tried your technique last night sitting on the edge of the bath and initially got a stiffy which went with the initial discomfort of pressure on the prostrate. After that I found it to be enjoyable, within a few minutes the pre-cum start flowing and didnt seem to stop for about half hour. During that time I had about half a dozen, what I could only describe as, orgasms with a sticky clearish liquid and this was all without touching my cock.
I then started wanking which I really enjoyed even though I had no erection, all the while the pre-cum was still running. Suddenly and much to my surprise I went from totally soft to rock hard and shot my load but the cum was very thick and lumpy as described, I would say much like whipped cream. I then stayed hard and wanked to ejaculation twice more.
Thanks again for the info, in particular about the possible brown mess, I used 2 disposable latex gloves and wore through both.
I certainly will be doing this again and next time plan to try to catch the pre-cum to see how much there was, it certainly took some clearing up off the bathroom floor also I may try to get my partner to do it to me as its a very awkward position for DIY