Giving Oral to a male
Keep in mind, when you are performing oral sex, you are doing this for him. Sending negative vibes about not wanting to or how much of a chore it is will take away from his experience. If you act enthusiastic, chances are it will be over faster, and it will be your turn to receive. If you are really against performing fellatio, explain to your partner why you don't, and don't allow him to force you if you are uncomfortable.
Cleanliness is essential with virtually all forms of sexual play; particularly in oral sex where a bad taste or smell will undoubtedly dampen enthusiasm on the part of the giver. A bath or shower is a great primer, and can be the start of the festivities. If you are uncomfortable with a particular smell that your partner may have, suggest taking a shower with you, because you've had a busy day and don't feel clean. You don't want to point out the smell (unless it is a very common occurrence and can be prevented), as that will only lead to anxieties and take away from the overall experience.
Finding an agreeable position for fellatio is usually not a difficult task. Both the man receiving fellatio and the person performing fellatio need to be comfortable. For deep throating, it is wiser to choose a position where the angle of the penis and the angle of your throat are somewhat aligned.
Too often oral sex is initiated by sucking on the penis. To achieve a more powerful orgasm, it is better practice to start with some teasing.
With the exception of a quickie, fellatio should be started with some well placed teasing. Start by kissing and licking around his penis, on the inner thighs, then on to his testicles, and then slowly up his shaft towards his glans (the head of his penis). Once you get there, use your tongue to tickle him around the glans, and especially on his frenulum, the skin join on the underside of his penis. At this point, he should be hard as a rock and super-sensitive to everything that you do. You can continue teasing if you like, but we don't recommend teasing too long, as this can become frustrating for the receiver.
One common problem women performing fellatio make is using only their mouth to repeatedly stroke his penis. They continue doing this until either it works, or they get a sore jaw and neck. A good "blow job" should not be too repetitive, should include stroking using a hand and the exploration of his testicles, thighs and (if you and he like) the anal region. By mixing up your style, you allow your muscles to relax, you can avoid getting a sore neck and you can improve your performance. How you mix it up should depend on what your partner's likes. Although there is a lot to say about fellatio that can get the job done in a matter of minutes, it is the longer ones that usually result in more intense orgasms, and coincidently are remembered.
It is a good idea to keep an eye on his scrotum (his testicle "sack"), as it is usually a good indicator of how close he is to coming. As a guy gets closer to climax, the skin on his scrotum tightens and pulls his testicles towards his body to warm them up. You can let this happen on its own, or help out by stimulating his testicles with a hand, tongue, or mouth.