So how do you get prepared? Study and practice. Bone up on your reading about oral sex. You can find an infinite amount on the internet. Watch porn films where women perform on other women. Who would know better and what better way to learn? And it's a turn on.
Then you have to practice and experiment. What other subject can top cunnilingus for preparation and practice. I can't think of any.
Just think of it as a baseball game. There's no clock running and if you have to go into extra innings it only means you'll have more chances to hit a home run. It's the bottom of the ninth, the score is tied, there are two outs, the bases are loaded and your up to bat...swing for the fences.
First base: Don't rush
Starting out can be the most important part of the game. Relaxation is the key here. Getting a woman to relax before performing oral sex on her can make all the difference. Offer a back massage or a foot massage or rub her shoulders. Make this act as sensual as possible. And I don't mean substituting your penis for your hands. If you are really into your woman you'll already know what I mean. Hell, rubbing her fucking calves is a turn on, baby. If you understand that then you are on your way. If not...WORK ON IT This is your gateway to more sex.
On your path to relaxation let's just say you choose a foot massage to get your woman in the mood. I've found the best position is to let your woman sit in a nice, plush chair behind you while sit on the floor in front of her. This way she can drape her legs over your shoulders, you have easy access to both of her feet and she can watch, say, a movie with Johnny Depp in it. As much as you hate watching the little fag if it gets her in the mood...fuck it, watch too.
I use baby oil because it's so much cheaper than some of those massage oils, but if money is of no consequence, then knock yourself out with scented oils.
I start with one foot at a time, draping it over the appropriate shoulder. Cup one hand, fill it with a modest amount of oil, rub both hands together and then lather the foot so your fingers slid easily over the skin and between the toes. The easier your hand and fingers slid the easier it is on your lower arms. Rub the oil into all parts of the foot; in between the toes, the Achilles tendon, the ball of the foot, the heel, in between the ankle bones and into the arch (the most sensitive and erogenous part of the foot). Alternate between both feet for at least twenty minutes or more. Remember, this is not a race. Take your time and don't rush. The more you're into it, the more she'll be into it.
Second Base: Don't Forget The Breasts
Once the massaging part of your seduction is over towel her feet dry of oil. Once that is done you turn around and, surprise, you are already between her legs. Now don't get ahead of yourself here. We're still in seduction mode. Move slowly up her torso, kissing her body like she's the hottest woman on earth. And by God, at that point, if she isn't then you need a lobotomy. While you're kissing your way up her body take time to pause and look her over. Look at her like your ten years old and it's Christmas morning and you just opened a present you wanted but never, in a million years, thought you would get. She could be dressed in an old tee, pajama bottoms and white socks, but to you it's Victoria's Secret.
Move close to her face and kiss her with a controlled passion. Kiss her to let her know you are so turned on you can barely control yourself; but this is about her so you are in control because the only thing that matters is pleasing her. Kiss her and in your mind pretend it is her pussy. Give her a taste of what is about to come.
Move back and look her body over once again, moving you hands over her. Not groping, but caressing, working your way down to her breasts. Move her top up over her breasts, feel them, caress them, run your tongue over them paying particular attention to the nipples. Lick around the areola, over the nipple, along the underside of the breast. Lightly rake your teeth over the nipple if she likes that. Cup them in your hands (if she likes them handled a bit more roughly please accommodate), roll the nipples between your fingers, suck it into your mouth and flick the nipple with your tongue. Alternate back and forth. Never underestimate the erogenous nature of the breast and nipple.
Now kiss you way down to the top of her pajama bottoms, maybe taking the material in your teeth and pulling them down. Reach around to the sides and slowly remove them. Take time to stare at her panties; stare at them because you know what's underneath. Cup your hand over the pelvic bone and press against the heat of her warm pussy. Slid your hand down to feel her lips under the material; feel the slight dampness. Move your face closer and run your tongue over the same area. Push your face into her vulva, all the while sliding your fingers under the sides of her panties and slowly inching them down until they are around her knees. Move back, looking at her and slid her panties of the rest of the way.