The New York Daily News reports that the girls had extra security measures in place at their birthday bash.

The Olsen twins demanded that guests check cell phones and BlackBerrys at the door at their 21st-birthday party Friday, lest any illicit pictures get out and ruin their six-figure asking price for photos.

As if these two aren’t already making millions for their likenesses and the endless array of Olsen Twin products.

Now their own friends can’t memorialize that time they held back the hair of both twins as their celebratory woo-woo shots came back up?

This is a slippery slope. What’s in store for Mary-Kate and Ashley’s future partying pals?

Confidentiality agreements? Blindfolds? Memory-loss drugs?