This is private message convo between me and dancingdoc2. I was asking questions and he was answering. So read on its some good info for the beginners.

ME>> Are u saying that intercourse shouldn't last more than 10min, the thing is that it takes a while for my GF to get orgasm (I have no reason why and I tried everything, different styles, more makeout, less makeout, fingering (at one point I fingered her for 30min and nothing happened)

dancingdoc2>> There is a yes and a no in that recommendation. Yes, of course intercourse can go on for longer than about ten minutes; however, it is best to take a break now and then, continue fooling around and then have another go at it. No, it is best if intercourse does not go on and on and on either in an attempt for you to climax or your partner.

ME>> I tried lube and no lube. Everything that I could, the only think that I found to work is 20-30min of makeout so that she gets wet and then about 20min of sex (she does say that her legs get sore and everything) but it takes her about 20 min for her orgasm to come.

dancingdoc2>> You are doing well with a makeout session of 20-30 minutes or more within reason and time permitting.
Please keep in mind what sort of mechanics are involved in generating a woman's climax. It is the same sort of action we require--F R I C T I O N. Very few sexual positions provide the necessary ongoing contact in order to build a woman's arousal through friction. More often than not, her body is bouncing and moving around with only periodic contact between her genitals and the man's body. For a woman to climax, it takes constant and ongoing friction. Because only a few postions provide this amount of friction what most guys do is to reach around and finger the clitoris while stroking away. Another thing couples do is to have the man help his partner climax before and/or after intercourse if it is her wish.

ME>> The only thing I didn't do is fast intercourse (like going in/out fast, because I am sure I wont last more then 5 min if I do it fast).

dancingdoc2>> Yup! you're probably correct. Please keep in mind that intercourse should not begin until she is ready and you are on the raw edge of triggering an orgasm yet can pause and still maintain control. Stroking maintains an already high state of arousal. Thrusting peaks this and triggers an orgasm. It is incorrect to think that lots and lots and lots of stroking is the way to build an orgasm for either one of you. So, reach around and finger her while stroking, and join the rest of us who do this.

ME>> I always though that clit and g-spot are two different orgasms so if u do one it wont do any good for the other one

dancingdoc2>> This is open for debate. There are sexperts with rational opinions on both sides. Personally, I believe that an orgasm is an orgasm is an orgasm. Yes, there are differences for a woman on how they are built and triggered, and they may manifest themselves differently, but you will have to ask each individual how she catagorizes them. An orgasm built and triggered via the clitoris is the usual approach. The G-spot is a much more recent concept and much more difficult to attain. So, if a person can orgasm from this form of stimulation, so much the better, just do not expect or depend upon it because any orgasm for a woman by whatever means is conditional on so many factors.

ME>> and I always thought that if u stop intercourse for 10min and then start again it would be like starting from scratch.

dancingdoc2>> That depends. If the two of you continue to make out and the kisses and caresses are ongoing, then, no, you will not be starting from scratch. Each person's arousal curve is somewhat bell-shaped. There is a long leading edge, a flat plateau at the top and a sloping trailing edge. There are difference in the shapes between male an female. The womans curve is considerably wider and the leading edge is much shallower--meaning a longer climb to the top. In addition, the trailing edge is much shallower, also. The male curve is much narrower and with steeper sides; therefore, we are able to be aroused much quicker, yet our refractory period (state of bliss) after an orgasm is much shorter. A woman can have residual feelings for the rest of the day whereas a guy will enjoy the moment for maybe an hour so at most.
There is nothing wrong with making love for hours. Ya just gotta balance the intense foreplay or intercourse with just more making out. This is also where multiple orgasms come in handy. Women can enjoy many more than men and with a rest period between any two of just moments. The typical guy depending upon age and "wiring" requires between ten and thirty minutes to recoup and regroup after an orgasm before being able to have another. If you and/or your partner want multiples, then you have options. Hers can come all at once, or, with a few spaced close together and others holding off until he is ready for the next one. Lastly, she can hold off on the rapid ones preferring to space them out to match the timing of his.
The key is not to stop intercourse for ten minutes, rather to finish and then do it again after a pause in order to enjoy another orgasm in half an hour or so--whatever works for you.

Thanks a lot to dancingdoc2 for answering all my questions.