I am the same way bro.. its fucking hard for me to cum.. i've come from head 4 times... I come from sex half the time.. I dunno.. but yeah if I wait a couple days it makes it a lot easier.. when I am on my own i can make myself come at least once a day though.. I think some of it is being able to really let go and enjoy things with someone else.. its intimate in a way.. I bet if you were with someone you couldn't care less about like some whore you'd have no problem blowin your load.
Brian
Brian