I have a lovely but wimpy 8 year old boy. We've always wanted another rescue but didn't think he would cope well with an adult cat so we have just acquired an 8 week old girl so he hopefully can assert himself and establish a hieracrhy!
Yesterday we let him see her in the carrier and we have set her up in a room so for now the rest of the house is "his". We encouraged him in last night and he strode over, gave her a sniff and then slinked away in fear.
Today my DP held him in his arms near the door for a cuddle so he could see in to the kitten (who was fast asleep) and he did a hiss, that weird talk growl they could and then refused to come in when we put him down but did hang around on the landing outside.
I see this as progress, especially as it's only day 2, DP sees it as a fail. We are both worried about ruining his life! Also we want her to be downstairs eventually and establish some kind of vague harmony. I have done lots of reading but does anyone have any experience based advice?!