I have a problem, my girlfriend is wanting to have sex with me (and i want to please her that way too) but I have a bit of a problem. I can masturbate for day's on end with no result, but as soon as a fluid or lub is used I give out in seconds. I believe that I am a quick shot and would not like to end a night on that note. is there anything that I can do to delay the ending to give her a more pleasurable experiance?