WMG / Phenomena

Harti and Khiri got Alk & Ilke in their teens:
Look at the picture on Awesome, they look tired, has bags under eyes, but that is because they're slaves. 16 year olds can get such thick beards, and Sha-ra tells Alk when he's 17 that he'll start shaving soon as sooner or later his beard will start growing. This can also explain why the mortoks didn't see Khiri's pregnancy.
http://tvtropes.org/pmwiki/pmwiki.php/WMG/Phenomena