'Scream 4's' Courteney Cox over-shares about David Arquette on 'Howard Stern'

courteney-cox-scream4premiere.jpgWhat is up with the over-sharing this week?

First Hayden Panettiere dished on getting it on with her super tall boyfriend, Wladimir Klitschko. Now fellow "Scream 4" co-star Courteney Cox is telling the world about what David Arquette is packin' down there.

Photo/Video credit: Getty Images, Howard Stern