Back in the mid-70's, there was a short-lived jeans line called "Cheeks," which had a print ad showing a man and woman wearing the product, with the man smacking the seat of the bent-over woman's jeans. Feminists were outraged and got the ad pulled, but it was later reported that the women's line had sold better than the men's.
A few years later, Billie Jean King did a TV ad with her mother which ended with Mom popping Billie Jean on the bottom with a tennis racket. Nothing serious, but a little fun.