I got a female that locks with a normal male all the time. She has locked with my pastel once. Everytime I stick the pastel in with her now though they dont lock. But if I take him out and put the normal in they lock within minutes. Is it the male or female or both? I heard of a few ways to get the male to lock, but could it be the female prefers not to mate with the pastel? It would figure that my girl would be the one to like the average joe instead of the fancy guy. The normal male is bigger than the pastel. Dont know if that matters.