I had read a few people had twins with Caleb. I did as well, and I was curious as to how many others have gotten twins with him. I almost never have twins in my game. I had a set of twins with Cal...
The first time I had a baby with Caleb she was a spellcaster and they got twins, one spellcaster and one vampire. In a new family I had two different vampires have babies with him and they both got twin vampires.