Post Orgasm Cock Treatment

My two teenage mates and I were on holiday camping and, as often happens, one night the conversation centred on our sexual experiences. Consequently our three cocks were getting harder and harder. Groping each other's cocks soon became prevalent and high spirits kicked in. Suddenly I found that I was being held down and laid upon by one whilst the other mate started to wank my precum covered cock hard-and it was feeling rather nice. Soon the inevitable happened and that familiar tingling feeling deep inside my shaft warned me that I was about to shoot my cum-pure ecstasy ensued as both hand and cock became covered in my warm spunk. Normally at this point in the process I would then have taken the active part and repaid my mate by wanking him off, but on this occasion I was not allowed to. I was held down securely by them both as without stopping for a moment my poor oh-so-sensitive cock continued to be rubbed relentlessly and unmercifully. I had never experienced this exotic form of pleasurable but unbearable treatment before in my young teenage years of wanking. Despite trying to struggle free I was unable to stop this new experience. Eventually after what seemed ages (but was probably less than a minute in fact) the torturous sensation in my now flaccid cock began to fade and I became aware that my somewhat shrunken cock was growing again. Still the relentless rubbing continued until that tingling feeling began again and for the first time in my young life I knew I was going to cum again. Slowly but surely the orgasm began to surge through my cock like a train emerging from a tunnel. This time the amount of cum was minimal but the intensity of the orgasm was so so strong as to be unbelievably marvellous. This is the only time in my 60+ years of orgasms that I have experienced such exquisite torture after cumming. It was totally unbearable but marvellous as well. I have never been able to do it to myself and when I asked my wife to do it to me, despite having restrained me, when I begged her to stop (as it was so unbearable), the stupid woman did comply with my urgent request. Even at my age now I would still love to experience those moments of exquisite agony again. I'd also be interested to hear of any other guys' similar experiences.