OK, I'm a little sceptical but just in case, I don't want to be mean and even if you are a troll some poor genuine teenage male virgin with an uncut dick might surf into this thread looking for advice so no harm done. Here goes:
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Step one above is pretty much all you have to do but for extra style points watch some porn and read some on-line tips written by women on how to eat pussy properly. It won't do to have women running around thinking that uncut guys suck (pun intended) at cunninglingus. So do your homework. Don't rush, try to give her at least one orgasm before you stop eating her out and begin fucking her or letting her suck your dick. (Note in porn women always drop to their knees and start getting turned on by sucking a guy's dick but in real life women are slower to get horny than men and it's best if the guy goes down on the woman first to get her wet and horny. Then she'll actually be in the mood to give a BJ)
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And tell her if she's sucking your dick too hard and get her to try it both ways, with the foreskin up and down and see what feels best.
Be a gentleman. Don't cum in her mouth without warning her. Girls appreciate that and it will pay dividends later. Again, don't be shy. If you have trouble cumming more than once in a night tell her that her BJ is so good you're about to cum but you really want to fuck her so can we stop and catch our breath a minute.
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Afterwards don't fuck and run. Most women like to keep going. Try eating her out some more or cuddling while you wait for your second erection to give it to her again.
HTH