The story from the girl is that Spitzer wanted wild, bareback (no protection), anal sex.
From the pics I've seen of Mrs. Spitzer, I suspect your assessment is correct. She looked pretty good (until the recent bad news), and perhaps in earlier years she had her frisky moments, but not quite that kind. I'm speculating, of course; one never knows for sure.
Thank you for that mental image I will forevermore have whenever Spitzer’s mug is shown.