Hi!! Congratulations on the new additions to your family.
I used to have a bunny named Hunny, who went to the Rainbow Bridge a few years ago. She
cats, and she was best friends with Tailer. Hunny was defintely the boss of the house, too, and wouldn't let Tailer get out of line. We got Tailer when he was a kitten. Hunny was a free-running litter-box-trained house rabbit and she practically raised him. He still has mannerisms and does things that we know she taught him. Tailer used to love to chase her and play with her, and she loved to be chased. Her tail was an irresistible temptation to Tailer, and she would sit in the middle of the floor and twitch it until she got his attention and he'd chase her.
There are a few considerations to keep in mind when you have cats and rabbits together, though. The most important thing is that ANY cat bite or scratch can be easily become infected and be FATAL to a rabbit. So you need to keep a close eye on the action and make sure it doesn't get rough. If it does, and the bunny gets scratched or bit, get it to a rabbit veterinarian right away.
The House Rabbit Society had this article on its site about cats and rabbits together, which you may find useful:Cats and Rabbits
The HRS site actually has a TON of information about caring for a rabbit, so I strongly encourage you to look around. They're a terrific organization. (I used to volunteer as an educator with our local chapter, and I'd also be happy to help answer any questions you may have.)