Varies with the woman.
One older colleague who was quite a strong personality at work surprised me. First she aggressively came on to me, which I loved, and took me home to have vanilla sex, wonderful but nothing kinky. Soonafter, her true self emerged. She was extremely anal oriented. She liked to be made to present her bare bottom to me, very embarrassed, to have her anus “inspected”, me verbally telling her what to do and then describing what I see and do to her. Sometimes I explained it all ahead of time before she removed any clothing. She loved and kinda hated knowing exactly what would be done to her. Those evenings always ended with my cock and cum inside her ass.
Another wanted to begin by playing doctor. Including me calling her at work that day to “confirm your appointment with Dr. Richard tonight”. When I arrived, I removed the items from my doctor bag so she could see them before the exam began. Gloves, flashlight, thermometer, lubricant, etc.
One woman, a conservative looking librarian, had no ritual or preference. But the one thing she always wanted before anal intercourse was for me to finger her anus while she was face down, always two fingers, always with Vaseline. In and out and twisting, usually about 5 minutes, then her bottom was ready to be fucked. A prep maybe, not really a ritual.
This topic has got me thinking a lot now about some old memories.