You can use vegetable oil, KY jelly or even vaseline although you should not have needed it unless the vagina is dry. If your wife is prepared physically and mentally there is enough lubrication. There are no creams available to enhance pleasure. One should not apply anything like local anaesthetic as it will desensitise vagina as well. For delaying ejaculation, you can try Indian viagra in low doses i.e. half tab. of 25 mg one hour before sex. You should not be taking any heart medicine if you want viagra.