Play bites??
My cat bites me or my boyfriend sometimes out of the blue, usually when we're petting her. Just now she came and cuddled on my lap for a good amount of time, and when i moved my arm in front of her face she like, hugs my arm with her paws and bites. It's not hard, it can sometimes scratch my skin but it's still a behavior I don't want her to do, especially if I don't know the reason behind it. I realize mostly the position I put myself in that gets a hug and a bite, so I haven't been bitten in a while, but I just don't like it. Any thoughts?
She's starting to 'get' the tones and words of 'good kitty' and 'BAD KITTY!' so maybe that will help?