ANSWER

Every man is different in terms of his preferences with fellatio. But most men want to know that you adore his cock, and further that you approach it with great care, respect and love; much the same as a female wants her vagina to be treated.
 

If you are too aggressive, too rough, too demanding, too sexually "hungry" (somewhat like you might imagine a vampire acting if she were going to feast on his blood), then the result may well be that he won't be able to cum (ejaculate). Try showing love, care, respect, and tenderness and see if this makes a difference. Of course there can be a time for more vigorous sucking, but let him indicate when he is ready for such a treat. 

Popularity: 4% [?]