For what it is worth, I only get blue balls if I've been aroused without release. If he's not getting aroused, then he won't probably have the ache.
Also, I find that my horniness seems to peak 2-3 days after last ML, after that it subsides. I guess it has to do with the inventory of the little swimmers on hand (...ugh, no not on hand...in the sack maybe? ). The body apparently reassimilates them if they are still around and it slows production of new ones. For me, once I get past about the 3-4 day point, lackanookie gets much easier to bear. Not that I get any less aroused when the situation presents itself, but it is no longer imperative and I can get to a take it or leave state....provided I don't go off and MB in the mean time.
--GGB, starting to see why the church says one should not spill the seed!