Oh shit, I guess that explains where that curse came from. I can only imagine what the world would be like if all fathers could do that.

now the question is, did he put the curse on because he knew his daughter was kind of a nympho when it comes to orcs, or was he just a paranoid father who would do this with all his kids?

It's not like she ever bothered hiding how much of a pervert she was. Remember, when she was in her village her own sister greeted her with an aside that she was actually wearing clothes that day.