What's in the water up in Hollywood?

Seems like all the preggo celebs right now are knocked up with twins. WTF? Something seems suspicious, does all that Botox have a side-effect resulting in multiple births?

Patrick Dempsey and wife are expecting twin boys. Looks like McDreamy Jr. I and II are on their way.


Next up, we have P.Diddy who knocked up his baby-momma, Kim Porter, with twin girls.


Then we have the boy/girl twins of Melissa Etheridge and Tammy Lynn Michaels. Did they use David Crosby's boys again? *Shudder*


Elvis Costello and Diana Krall are expecting twins too. They know the sex but aren't telling the rest of the world.


And last, but not least, is Marcia Cross who is also gonna pop out two pups.