dude, when young I thinK I used bar soap man! fucked my shit up all kinds of ways! what else, hmm yeah tried gel, lotion sucks, vaseline too thick, flax oil ,lol I had this chick over, had a porn going, she was suckin but couldnt make me blow, so I busted out a bottle of flax seed! she was like wtf is that? I said Ive gone all organic baby and proceeded to blow one on her chest, lollll