When I adopted Suny and Luna (Suny's name was Bond at the time) I said I wanted two cats that got along with each other. They are very bonded and seemed to have been that way before they came home with me. They love laying out on the lanai. Suny is always grooming Luna--and she usually lets him.
Luna is now also quite bonded to me. She sleeps on the pillow behind my head and sometimes wraps her head over mine with one paw on each cheek. She lays there and purrs. They love their toys and towers, and particularly like the cat nip from my plant and the cat grass. Suny is a Tuxedo cat, so he's the one with some white showing. Luna is smaller and all black except for a small patch of white on her chest.