The best buddies had popped out to buy some snacks only to find they had forgotten to take their keys with them upon their return.
The new mothers then chatted and giggled as they waited for someone to answer the intercom at the $4.8 million (GBP3 million) house in Primrose Hill, North London - before a scantily clad female eventually rushed out to let them in.
An onlooker says, "They clearly didn't plan to stay out long because Kate wasn't wearing any shoes and they both looked scruffy. They seemed to find the whole thing very funny."16/07/2003 00:13