I have a 6 month old male orange cat. He LOVES cuddles and is constantly begging for rubs. Soon as you start rubbing his back/spine he starts meowing and nibbling on your fingers, not in an aggressive way, but more like “don’t do that” but then goes back to wanting to be rubbed. Fiancé thinks he’s just being playful, but I’ve never had a cat not appreciate a back rub. Could he be sensitive along his spine? There isn’t any noticeable problems with his back. I’ve checked. Any opinions are welcomed.