Might be a bit obvious, but I wanted to stress the importance of good sex, good game is great. However, poor performance in bed can lead to her seeking other partners to give her the satisfaction that she desires.

From Chateua Heartiste's 16 Commandments of Poon

Fuck her like it’s your last fuck. And hers. Fuck her so good, so hard, so wantonly, so profligately that she is left a quivering, sparking mass of shaking flesh and sex fluids. Drain her of everything, then drain her some more. Kiss her all over, make love to her all night, and hold her close in the morning. Own her body, own her gratitude, own her love. If you don’t know how, learn to give her squirting orgasms.

In other words, make her yours. Fuck her like you own her, I don't mean that in a abusive kind of way (unless she's into that and wants it from you). But feel her up all over and make her feel like her body is priceless to you. After the sex make her feel comfortable and show some care, hold her close and have some pillow talk. Also, here's a guide to making her squirt.

From RSD: How to make love better than a pornstar

The rewards are fantastic. You have probably read the statistics that a large majority of women have never had a vaginal orgasm. You have probably also read that an even larger percent are unsatisfied with their sex lives (I read somewhere over 90%). Knowing how to fuck will give you an enormous rate of return. Perhaps the only thing that will give you a larger rate of return in terms of quality of life is taking care of your health.

The article is a long read. To summarize it great sex comes from a combination of four pillars, dominance, emotion, variety, and immersion. Great sex is more so psychological than it is physical, if you can spike her emotions during sex than she'll enjoy it, you don't need to worry about some crazy sexual positions to make the sex unforgettable, it's all about how she FEELS. Dominance comes from having a leader role during sex, being able to turn her on with dirty talk is a big factor in revving up her sexual emotions (hence why great sex is psychological). Emotion comes from being romantic during sex, and being able to give her emotional talk and not just dirty talk. Variety comes from being able to give her a variety of sexual experiences, from rough dominant sex, to passionate emotional sex. Be the ultimate lover. Immersion goes hand in hand with Emotion. It's is described as "letting go of thoughts, fully stripping away any social conditioning and just being in the present moment." In other words, you're getting the girl fully emotionally immersed into the sex to give her the best experience she's ever had.

My Own Personal Tips For Awesome Sex

  1. Kiss her aggressively, enjoy her body.

  2. A great way to turn her on is grabbing the back of her head with her hair and pulling it back. Then kissing her on the neck. You can also pull her hair back and talk dirty in her ear.

  3. Don't just eat the pussy, own it. Each girl is different though, so find what she enjoys the most during oral, eat her out in different ways and watch for what she reacts to the most. Whatever she reacts to the most positively is the method you should use.

  4. Her g-spot is usually two inches inside on the roof of her vagina. Make a "come here" motion with two fingers when stimulating it. You can finger her this way much faster and harder after she becomes really excited. It's important to watch her reactions however, slow it down if it's a little too much for her. If you're good at it, rub her clit at the same time and you can make her squirt in a a short amount of time.

  5. I've probably mentioned this earlier, but dominance is important. When your fucking her doogystyle bring her up and wrap your arm around her upper body. Hold her close and talk dirty to her ear and/or kiss her neck. Simple psychological methods like breathing close on her ear or bringing her head close to make strong eye contact when she orgasms can send her over the rails.

  6. Tell her what to do. Use commands like "bend over", "arch your back", "turn around so I can fuck you from the front", "tell me how much you love this." Commands like these establish your role as the leader and the dominant one during sex. Don't ask, TELL. Women LOVE this.

  7. Also, some guys don't know this, but a good deal of women (60% or so I believe) need clitoral stimulation in order to orgasm. This means a lot of guys fail to make her orgasm because they use penetration alone, you have to be able to combine vaginal penetration and clitoral stimulation to make a lot of of women effectively cum.