When it comes to giving a blowjob 'correctly' and him finding it super hot, enthusiasm trumps all. Whatever you're doing, looking like you're enjoying yourself will make it feel a million times better. So just look like you're really into it, ideally actually be into it, and you're halfway there! The mental aspect of knowing the girl has your dick in her mouth and is not only genuinely enjoying herself, but wants to do what she can to let you enjoy it, will make ANY guy feel like a king way more than any porn-star quality techniques.
Focus mostly on the head. The shaft itself doesn't have that many nerves on it so though paying attention to the area as a whole feels good plus builds anticipation, make sure to flick/lick around the head when you're coming up. It's a good way to maximize surface area being touched to just put the outer fourth in your mouth, swirl your tongue around it and the head, while paying attention to the shaft/balls with your hands. Two birds with one stone!
Most guys like some ball play. Start gently, with just barely making contact with your hands to feel out this particular guy's sensitivity to pain down there. Once you've got that taken care of, it feels good to suck on one ball at a time, though again not too hard as it's quite a delicate area. Most say to minimize hand use during a blowjob, as they can give themselves a handjob the best. But as long as you make sure to incorporate some mouth action, I'm sure you'll hear no complaints.
My guy loves it when I get the whole shaft nicely lubricated with some spit at first before paying attention to just the head & last 1/3 of the dick. Don't forget to include lots of tongue action here, like swirling, etc.. While you're doing that, right under your mouth, work the shaft with your hand. Moving up and down in tandem, or doing twisting motions works well. Another variation on that is to work the last 1/3 with you hand, doing a twisting/stroking motion with extra stimulation on the head with your palm when you move your hand outwards and at the same time, pay attention to his balls with your mouth.
(To prevent your teeth making contact with his member, you know how some children sort of wrap their lips around their teeth when pretending to be old people? Just do that as he's in your mouth and you won't have to worry about hurting him anymore.)
When giving a bj just take control. Move your hand up and down his shaft while teasing his tip with your tongue/mouth just softly at first. Don't feel any need to rush let him enjoy it. Circle your tongue underneath his shaft and explore with your tongue. Circle the top with your tongue and don't be afraid to look up at him occasionally very sexy!!! Keep a steady pace but slow down when he gets too excited to prolong it a bit. Make erotic sounds after a while it can send vibrations and turn him on more getting him ultra excited. When you know he's about to climax play with his balls a little just grab onto them but not too hard.
Those are just simple tips you can't get too complicated your first time it might not work
As for the sex thing just make sure to communicate with him if something's uncomfortable. It won't be too pleasurable for you (usually for most women anyway) the first time. Let him take the lead, don't be afraid to let natural noises that you may make come out as my girlfriend was really by at first and it made it harder for her and really just do what feels right. Let him take control for your first time and communicate
As long as you put his dick in your mouth it will be a good bj. As long as you are into and you more mouth than hand it will be a good bj. You won't never know if it's the best or not (he will tell you it is no matter what) but just do your best.
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