I don't think the Hirogen were thinking about sex within the holographic simulation of WW2 at all, they were all about the glorious "Hunt". So no, I don't think there was any actual pimping or copulation going on. Even B'Elanna's pragnancy was only a simulation to inhance the hunt. It isn't called "Killing Game" for nothing.
Oh and Dream, just have a look at the ongoing thread here in the Voyager Section, "How is Janeway Sexy."