My two sons, that is.
Even when they seem to spend nearly the entire weekend fighting (aside from the time they spent making weird noises and giggling hysterically) and even when I am in the middle of PMS so bad that when my cat snuggles past my legs or jumps to my lap to be petted I want to pitch it against the wall (so you can guess how well the juvenile hijinx went over with me).
Still, they are both adorable, and loveable and sweet.
Putting my youngest to bed tonight, he demanded a "monkey hug" where he wraps arms and legs around me and hangs, a feeling that cannot be surpassed. Putting my oldest to bed, he became alarmed at a bruise I have on my arm from a blood test - looks nasty, but never did hurt. I explained where it came from, and why it's nothing to worry about, but he is pretty squeamish about things like that, and I could tell it was bothering him. So I tried to turn his attention to something more cheerful -- I didn't want him to have disturbing dreams. The twerp refused to be diverted, turning my best ideas into humdrum and annoyance. Then I simply told him to think of something fun, and make sure he had good dreams. His face was instantly transformed with a smile that still makes me mushy to think of it.
Then I made the mistake of asking what he was going to dream of. "I want to lead a bunch of soldiers and be a hero in Age of Empires'," (a nintendo DS game he borrowed from his dad). Okay, so it's not puppies and kittens. It's still worth it to see that smile.