User blog comment:Jack Pistol/Immortal Dovahkiin?/@comment-3194582-20121003151108/@comment-4772788-20121004210230

The Khajjit and Argonians are likely infertile with mer and men, it is not known about orcs though, their is a healing skill book that discusses the topic of fertility among races in skyrim... Too lazy to look for it atm though