her solution for me was if I cum to soon I must eat her to her completion even if I have already cum in her. If I cum to soon for her she would simply flip around and ride my face to her completion . This was horrrible at first to me but if your trying to last longer without the aid of desensitiving creams try taking ginseng pills . Ive found that ginseng is a real solution to prolonged orgasm, but the side effects are that you will be horny all the time. tell u more if interested