I can do it. Of course, the teeth and inner cheek muscles are involved as well…
Now if I could just learn to breath through my ears…
One time, I tied a woman’s clitoris in a knot with my tongue. She kicked me in the head and told me never to do it again.
Not a useful skill.
I’ve been doingthis for years. Without cheating.
I have always found it easy. It’s mostly a matter of “SEEING” (in your mind) what you’re doing.
I do use my teeth to help hold it in place at certain times, but I don’t use my cheek at all.
What sucks when trying to do it, si to have the stem fold over (break but not seperate). Makes it damn near impossible at that point.
I’ve never had a complaint from my fiancee yet.
I can do this. It’s more a trick of the teeth than of the tongue … at least the way I do it.
Never had anybody tremendously impressed by this, though. A couple of female-types have “ooh”-ed about it, but that’s it. Maybe it’s because it takes me upwards of five minutes, unless it’s a particularly long stem. I guess they’ve always figured that if it takes me THAT long, they can find something better to do. Of course, the wife has never complained about anything.
I’m shaking my head over the fact that no-one else has heeded this simple and wise post.
Penn and Teller even show you how to do this, step by step, in How to Play with Your Food (from where my sig quote also comes).
I’m with Frumpy. I always close my eyes when I do this little parlour trick. Sometimes it wows em, sometimes ya feel like a 12 year old. All depends on the crowd. 
Cartooniverse
While I suppose it is possible to tie a cherry stem with your tongue, you aren’t likely to be able to look sexy doing it. You will probably look goofy, as a matter of fact. It is far more stylish, and easier, to use the old switcheroo. Myself, I go for the studied nonchalance over the coquettish toungue action.
Prepare by acquiring a cherry stem and tying a loose knot in it. Tuck it in your mouth where it won’t get in the way of talking and eating, such as between your lower teeth and the walls of your mouth. Don’t start the trick right away, because now is the time to engage in normal conversation. When you’re ready, order a drink or desert that will come with a cherry. Here’s where you sell it: make sure your at a point in the conversation at which the attention is on you. It the middle of your unrelated anecdote, pick up the cherry by the stem and bite into it, and pluck it off of the stem. You don’t need to call attention to it, because it is already established that you have it, and you don’t want anyone paying too much attention to what it looks like, since the one you’ve got prepared will undoubtably be different. Just keep talking as you eat the cherry, if you can do so gracefully. When you have swallowed the cherry, don’t skip a beat, and place the stem up to your lips, and draw it into your mouth between your tongue and your pallate. Now stop talking for just a little while, and move your tongue inside your mouth and assume a look of concentration. You may want to work your tongue against the inside of your cheek because of the visual it gives, but it’s also almost too much. While you’re doing so, tuck the new stem into a new hiding place, probably on the other side of your mouth, and bring the prepared stem out of its hiding place. Bring the knotted stem to your lips, remove it with your fingers and put it down on the table without looking at it. And then go on with what you were saying.
Damn it, Coldfire and Johnny Angel… you’re letting out our trade secrets. That’s how I’ve been doing it for years!
Shhh… maybe nobody read it yet.
Oooops. Sorry, cooldude, I meant you, not coldfire.
What was I thinking! ::smacks self in the forehead::