Things a Man Should Know

There Are More Than Two Erogenous Zones
Yes the breasts and pubic area are obvious hot-spots but they get a lot hotter when stimulated in conjunction with other areas. Try kissing and gently stroking her neck, back, stomach and inner thighs.
Tell Her How Great She Looks
And mean it. On the whole women don't love to be naked. The second her clothes comes off she feels vulnerable and sensitive. When she undresses, tell her what you love about her body. And if she tries to turn the lights off, turn them back on to show her she has nothing to be embarrassed about.
Assume The Right Position

Yes, the pieces of the puzzle will always go together but there are certain tricks that will help make sure they are the perfect fit. By simply sliding a pillow up under her bottom while you enter her, you bring her clitoris and G-spot into better contact with you.
Aim for G-Spot Orgasm

Only 30% of women have ever reached a G-spot climax, and 100% of women want to experience this unknown ecstasy. So if you're the guy who helps her to get there, she will forever be grateful for and to you. The best technique to achieve this is to use a curved finger or a G-spot toy.  

 You Should Both Finish The Race
As already mentioned, women take time to climax. Men, however, are much quicker. Orgasmically speaking, she is the tortoise to your hare. So if you climax first, no matter how tired you are, you’re responsible for helping her over the finish line. The best tactic? Head south with your mouth.

 NOTE: Don't Stress About The G-Spot

The G-spot isn’t an actual pinpointed spot; the term is used more generally to describe an area on the front wall of the vagina. And it’s not sensitive for every woman. So if you find it–hallelujah! If you don’t, no worries. Plenty of things feel good down there, no need to spend all your time searching for the Tooth Fairy