Coming from a woman: Guys your cheat code is to get her to try and be really relaxed and comfortable with herself. And if you are doing your job right she will have the highest orgasam. But you both have to do your parts. Another suggestions is to get her to read about how to get off easier. My husband and I have been together for 11 years and we have always had really good sex(I use to call it hot sex) But here recently he had been gone away working a lot and I couldn't wait for him to get home I wanted him so bad. We had talked on the phone one night and he told me about another guy telling him how he had made his wife orgasam and I didn't believe anything he was saying. So of course I went to the internet wanting to know more. I learned I was never ever really relaxed enough to really let him please me the way I needed. Great foreplay is a must to get her arroused to the point of the endless orgasams. Even after you are done and laying there she will still feel like she is on the edge of another one. And if you barely touch her in any sexual ways she will cum again.
When he got home we had the best hottest wettest sex we had ever had. Got up and got the kids ready for school and continued this. Once you give her the right orgasam she will want you all the time. Before this yes I wanted sex but now I want it all the time. I can't wait for him to get home everday. I just want to rip his clothes off when he walks in the door.
1 last tip... Is she has to really want to have some of the hottest sex before she is actually going to relax enough to enjoy it.
So all this being said there is really no cheat code Just make sure she is relaxed and comfortable and both do your part. And she will be there before you are waiting for you.