I think it may work if you edit the
X Moon Productions\XStoryPlayer 3.5\pack\pack_dungeon\init\std\base\object\sex\init.dat file and switch the following part :
Code:
sex_object PDILDO
{
file_name = "scenes/objects/bdildo2Shape.obj";
pen_size = 0.06;
}
You can change the model (*.obj) by any penis model you can find in
X Moon Productions\XStoryPlayer 3.5\pack\pack_dungeon\scenes\penis like that :
Code:
sex_object PDILDO
{
file_name = "scenes/penis/penis2shape.obj";
pen_size = 0.06;
}