Hmm So.. I notice that lately it takes me a long time to actually climax.. or I won't at all while attempting self pleasure. So the body naturally builds up and gets use to it.. Any tips on circumventing this problem... besides just stopping?

Also I notice on the underside of the shaft right under the head there are two white dot sorta shaped things which have a fairly hgih sensativity.. nothing i can really do with practically myself .. however, I think in certain positions that would be particularly pleasureable.. anyone else notice that? I haven't ever really seen a reference to there being anything there in any science classes..