Damn this update is really surprising but at the same time not unwelcome. The surprise sex option is pretty nifty, as it makes more sense in my opinion, cos if they are wild nephelym how will they be able to hold back their instincts to mate? Currently the spawn rate is a bit high, not that I mind getting swarmed by 5 bovasaur in the space of 20 seconds but maybe should tweak it, or give the option to increase or decrease spawn rate in game. I suggest maybe you can add some kind of species specific pheromone potion, so as to attract or disuade the wild nephelym from approaching you. But all in all, this is a pretty nice update, can't wait for it to stabilise, then I can play with much enjoyment!
P.S. I was playing a male breeder at the time, and as I am straight, I suddenly got spooked when a male vulwarg spawned XD