Here are some general tips I have found useful when having sex:

1. Tour of the house. Once she is in your house a good way of getting her in your bedroom is by giving her a tour of your house, ending with the bedroom. This is a smooth way of getting her in your bedroom.

2. Workout. Sex is exercise, so you must be in shape to do it. Also, you want your partner to be aroused by looking at your body. An overweight body not only does not arouse, it also makes the exercise of sex much more difficult and strenuous.

3. How to unhook her bra. Go to Victoria's Secret and test unhooking bras. It is very simple once you have had practice. The back of the bra is a system of hooks. Unhooking the bra means taking the material from the left side and the material from the right side and pushing it together, if that makes sense.

4. Foreplay, foreplay, foreplay. Notice how in an orchestra, the peak of the performance comes after minutes of building up. Similarly, in Pixar movies they show a short beforehand to get you in the mood. The same thing applies to sex and foreplay. I like to prolong foreplay as long as possible to get her adequately aroused. Take off her clothes slowly and sensually. When she is naked, say how beautiful she is and compliment parts of her body. Foreplay is the necessary buildup toward sex.

"A lot of women's arousal is a mental game." -Marlee Kostiner, AskMen

5. Kissing. When kissing, use your lips more than your tongue.

6. Eating out a girl. When performing fellatio, aim for the clitoris. Put it in your mouth and play with it with your tongue. Also, there are oftentimes smells that come from down there. Breathe through your mouth. This will make your job that much easier as the smells will be gone.

7. Doggy Style. I highly recommend slapping a girl's ass from this position. It shows that you are an alpha male, and are willing to dominate her. Girls love that.

8. Touch her. The skin is the largest organ. Hold yourself against her body for better sex. This means when you are making out to have stomach to stomach contact.

9. Hands. Use your hands over her body and your fingers in her pussy for strong arousal.

10. Shave your pubes. It is cleaner and also makes your dick look bigger. Do it.

Be sure to be having fun when you are having sex. It is about your pleasure too. And if you cum too early, remember that you can always go back to foreplay.