My wife knows that when she makes that final slide across my lap there's no turning back.
She knows there's no, "Oh, I changed my mind." There's only expose the bare bottom and take what's coming.
She doesn't fight by putting her hands in back of her to protect her sore bottom. She knows if she does it just gets harder and longer. The spanking that is.
She does, from time to time, do what I call, "The sky diver" and that's when I know it's really getting through to her.