It depends so much on so many factors, not least your period of refraction time. Do what suits you? Maybe skin the ferret in the morning if punting that night? Or night before if going in the morning? Better than going in with two armed mayonnaise munitions, but enough time for the trooper to refresh. Another way to get two pops, is to have some oral, poke the drowning badger till you launch the swimmers, then for pop two have a combined oil tit wank and bj (titwank/ blowjob combos are how we know god is male, fact). Even if you don't pop the second time, there is not a better or more glorious way for your lone sentry to fail. Bottom line though, you can get blown without a rock hard boner, but when it comes to playing get a stinky Twinkie ...you can't play snooker with a piece of rope.