Sucking cock with latex? o_O I've never tried that, sounds disgusting (a bit like the "chew the eraser" dare at elementary school). And otherwise: definitely spit + a huge glass of something to wash the taste away. I don't like bitter tastes of any kind (I don't even drink coffee and only rarely beer) and this stupid stuff is slimy in addition. Ugh! Cocks would be a lot nicer (even more than they are, I mean ";-]) without something coming out.
But of course my fictional characters swallow. They're way tougher than I am. (And probably get more practice.) "X-D