"I am not make narrative paintings, and I am not giving a lecture. How does one deal with those issues? One has to find a visual way of implying that kind of stuff. So, I experimented with the whole idea of the shifting image, so it’s not as static and there is a sense of disappearing — the image is there and suddenly it’s not there and then it’s really not there. So that it moves.."
http://hyperallergic.com/198526/on-sexual-paintings-and-shifting-images-an-interview-with-joan-semmel/