Here are some tips on How to give woman an orgasm...
Tongue to lips
Any licking, gentle sucking or all-around moisture from the mouth to the vaginal entrance, the labia (lips) or the clitoris will surely make you popular with your flavor of the evening.
When you begin to give oral sex, it's important to start slowly. Women like it when a man takes the time to appreciate her and her body. What she won't like is an over-achiever who jumps right in with an aggressive tongue. Pretend that her entire vagina is an ice-cream cone with three scoops of your favorite flavor; if you don't like ice-cream, I'm sure you can appreciate the metaphor. Use your tongue to lick her vagina from its entrance up to the clitoris. Remember to chill out and relax; enjoy yourself and don't get tense.
Move your tongue freely from her inner lips to her outer labia on one side. Once you've done that, draw her lips into your mouth and massage them with your tongue. And since the other side will probably get jealous, move on to the other side afterward.
Were you aware that the tongue is the body's strongest muscle? Well imagine what you could do with your tongue if you were giving her oral sex. Since you have more control with your tongue than with your penis, the sensations will drive her crazy.
Not only is your tongue naturally lubricated with saliva, you can maneuver it in ways that a penis never could. So why not use your tongue to have sex with her? Thrust your tongue in and out of her vagina, and take a break from time to time to explore her insides.
While you're roaming around down there, vary your cadence and the firmness of your tongue. Use your firm, flexed tongue for pinpoint accuracy, such as when you circle the clitoris, and use a limber, flat tongue to cover more ground.
Remember to continuously return to her clitoris since most women achieve orgasm through clitoral stimulation -- especially when it comes to oral sex. However, don't apply too much pressure to her clitoris right away because it may irritate her and turn her off. Start out gently and increase pressure and speed according to her body language.
Above all, have fun down there when you're giving her oral sex, and keep her on her toes (or off as the case may be).
Intense vaginal volume
When you have her as hot as a lioness in heat, the following oral sex techniques are going to drive her wild. Once again, make sure to pay attention to her reactions and body language at all times.
With her clitoris still exposed, give it quick little sucks by enveloping it with your mouth momentarily and releasing it. This will definitely have a positive effect on her entire body.
Next, take her clitoris into your mouth and gently suck on it while you simultaneously flick your tongue over and around it. You can perform this oral technique very lightly or aggressively, depending on what she likes.
If you combine these oral sex techniques with your fingers, she will virtually have a mind-blowing orgasm every time.
Some more secrets on how to give great oral sex.