I dont think there is a dependancy on the experience to be honest, obviously one needs to be able to 'control' the timing of orgasm for both partners, in fact ive read somewhere that the idea of foreplay inhances the speed in which one reaches climax. I agree with this on point from experience. If there is a lot of foreplay before hand, then sex could last very little time, however, if both are not 'warmed up' before sexual intercourse, then the act could last long time, you should try not to have any stimulation before and gentally ease your way to climax, rather than rush the experience simply to relieve ones inner desire??