This only works for me to achieve climax! and a man should always go down in a woman the first time with her, because it's easier for her and takes the pressure off him. When a man can't have an erection i recommend to go down on her to tahe his mind out of his problem, he might get his ercetion after giving her an orgasm(he happend to me) at the least won't be 2 frustrated people at the end...and it will balance his sex-karma of women he didn't make cum in the past...