They did things different back in ye olden days. Note the utter lack of a pithy saying tattooed around her sphincter.
Some people worry that anal sex might be dirty. The Vintage Lust solution? Bend her over the tub!
Some more vintage bondage from the old black-and-white magazines. Roped up for anal sex, gagged, and looking as if the lube is insufficient:
Vintage Lust: Vintage Erotica Blog