Above: a fun cover for John Carver’s sleaze novel The Sex Twist, published by Beacon Signal, 1962. The art is uncredited, but if you want to buy it anyway the original painting is available for €3,300 from Netherlands based Simonis & Buunk fine art dealers. Have fun with that.
Argh! Okay, I've stopped twisting. Now I'm writhing—I think I just strained every muscle in my lower back.