I AM coming from a place of "helping" not "hating"! First, I would think that the girl could have retained some sperm if she has been bred before -- are you sure she is a virgin?

Second, the Mojave could be carrying a second gene(Pastel). Mark suggested he could be a Pastave? Some Pastaves can be visually subtle as adults. Either is possible. I would go with the female retention first. Has the Mojave bred any other girls this season? I would keep an eye out for Pastels in his clutches.

Good luck -- having a Pastave male is a nice problem to have.