This feels so good that a lot of guys won't be able to tell you aren't swallowing unless they are actually looking. The trick is to focus your lip action on the sensitive frenulum part of the penis while cradling the penis with your hand. The area to focus your lips on is just beneath the head of the penis. Use lots of saliva and put plenty of tongue into it-almost like you are French kissing this part of his penis. Occasionally fill your hand with your hot steamy breath. This also works well if your lover's penis is a little on the huge side and you'd more easily fit a zeppelin in a one-car garage than get it in your mouth.