No-one knows for sure why we are yawning. However, we know that yawning is rather infectious, and it's also rather funny watching people yawn. It's even more funny when these people are celebrities. Enjoy the yawn-pictures, and be sure to check whether you can resist that little yawn.
Heather Locklear tries a "Do I look like Steven Taylor when i yawn"-yawn.
"Pretending I'm giving a blowjob"-yawn.
"Dress like a russion spy"-yawn.
"I'm not so sweet, am I?"-yawn.
Britney's doing "Yawn and stretch", and for some strange reason she's pretty cute while she's yawning.
Damn, she looks spooky! "Bug off!"-yawn.
J-Lo does a "I'm so fucking tired that I'm loosing it"-yawn.
Drew does a "honour-the-photographer"-yawn.
Avril Lavigne yawning
Even Martin Clunes
Even Martin-"I'm crazy bananas"-Clunes
"I can eat a camel"-yawn.
"Yes, you are sick if you get turned on by my yawn"
"I'm well behaved"-yawn.
"Suddenly look like I did when I was a kid"-yawn.
Jade Goody: A version of the so-called "Crocodile Yawn".
Jonny Lee Miller
This one is one of the more rare yawns, a so-called "Jaw out of joint"-yawn.
"...and then, when I got down on DiCaprio on the set of The Aviator, he went, 'Hurry up! Scorcese is coming'"
"Not even supermodels look good when they yawn"-yawn.