[Gecko] "Female" U. henkeli grew cohones last night...

[Racodactylus]

Yep, my supposed female Uroplatus henkeli developed hemipenes last night, and I mean in one night.  He didn't have them when I fed them, but he sure as hell did in the morning.  I've got a friend who experienced the exact same "phenomenon" with U. lineatus. Any idea why this happened so suddenly?  Anyone else seen this? --Daniel