Let her tell about the one time, when he got especially aroused while going down on her. She was lying on her back an he knelt between her spread legs bent forward. At one point he retracted his face from her genitals sat up straight gently grabbed her ankles and determinedly placed her feet in his lap with her soles arching around his throbbing erection. Let her describe how she reacted to this move and let her continue to tell the story