First, lie him down on the bed and take off his shirt and pants but not his boxers. Kiss across his chest, and down his abs slowly. Keep going down until you get to right above his penis (his pubic bone). Rub up and down his thigh slowly, starting around his knee and slowly getting closer with each time you go up and down. Then start kissing back up from his pubic bone, and repeat the process. The whole thing should last about the
same time as a song (3-4 minutes). The important thing is not to touch his penis at all, but build up the tension and suspense. A good tip is to sing a song in your head, so you know how long to do it. Then, when the song ends, rub his penis through his boxers a little, and kiss it. Then slowly take off his boxers. After they're off, start licking up and down, and circling his head with your tongue.
The above should only be used if you're in a relationship and like each other, otherwise he probably won't want to wait if it's purely sexual.
Take the tip of his head in your mouth between your lips, and lick it inside your mouth. Slowly start moving your head up and down, taking more of his penis with each stroke. If he's really big, you can use your hand (make a fist around his shaft and move it up and down), but it's preferable to use only your mouth. If you can, you can try to take him all the way to his base (that feels really good), but many girls have trouble with this. One tip I heard (I'm not sure if it works) is to act like you're swallowing his penis when you get near the bottom, but don't try to "bite off more than you can chew" (just a joke - please don't use your teeth), as it's more important that you're comfortable than that you can take his whole penis. I don't know about other guys penises, but I know mine curves up, which would go against the natural direction of your throat. This is solved with the 69 position (if you're comfortable with that). It also has the added bonus that you get pleasured at the same time.
General tips:
-Don't suck hard the whole time, but alternate between high pressure and low pressure. Same thing with speed. (Until he's about to finish).
-DON'T USE YOUR TEETH. This is very important.
-Listen to his feedback. Even if he doesn't say anything, you'll be able to tell what he likes by his body language (and the noises he makes). If he looks like he's enjoying something, keep doing it.
Advanced Techniques:
(These are optional, but increase the experience)
-Take off your mouth and lick up and down, and lick his head like an ice cream cone. Then go back to sucking.
-Put your tongue in his pee-hole while he's in your mouth.
Finishing:
You should probably decide before you start if you want to spit (take off your mouth and finish him with your hand, and he cums outside your mouth) or swallow (let him cum inside your mouth). Hopefully regardless of what you choose, he'll warn you before he cums.
Sorry for the really long answer, but sex is my specialty =).
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