Possible daddy?

Here's the black cat that I sometimes see in the backyard sniffing around the kittens. Daddy?
Today was so gorgeous that I had to go and sit outside in the backyard for a bit. While I was there, the mama came and hung out with me. The kittens peered out at me from their little hole and determined that I wasn't a threat since Mommy was letting me pet her. They were so cute--curious, but not curious enough to come near me, so they sat by the wall and stared at me from behind some foliage. I was so boring that after a few minutes they both dozed off. ADORABLE.