is sort of like having your grandfather tell you that he and your grandmother liked anal. Maybe on some level you're happy for him to have the ability to open up and let loose, but otherwise, freaky sex and relatives don't exactly go hand in hand. And there's something about the imagery that is both unwholesome and quaint at the same time. Hitchcock didn't pick hot women to taketheir clothes off. No, sir. Not like that old story about him and Grace Kelly...
I'm not saying it's bad. It's just odd.