turn away (his action)

The view of Mark with his hand moving up and down on his dick stops Ely to do anything. She just stops in that position: her hands on her feet and her ass up and open to give him a wonderful view. In this position Mark can not resist any more, his hand move faster and faster. Ely doesn't want to see what he is going to do and turn her head to the wall. At the same time she feels a touch on her pussy. It can only be a finger of Mark trying to slide inside her.