Paris and Nicky out clubbing this past Thursday

Now THIS is some interesting news!

So, we spotted Kathy Hilton out lunching at The Ivy with daughter Paris on Friday, but afterward the elder Hilton headed over to the Boom Boom Room to attend a Hollywood gifting suite intended for, get this, parents and expecting parents...

A source tells X17 that Kathy's enthusiastic participation in the event was a tad, well, confusing. At different times Kathy asked her host to direct her toward newborn items related to "both boy and girl stuff" and later "twins."

Kathy also said she was "shopping for her sister" at first, but later changed her alibi to "shopping for my sister-in-law." Whoops!

The presence of Mrs. Hilton caused a lot of speculation, of course, with many concluding that Kathy really had something to hide. Hmm, but which daughter was she shopping for?

Paris has talked about wanting a lotta kids, but Nicky is the one with a serious boyfriend. If we had to choose between the two, we'd go with Nicky!

Paris Hilton

Of course, as you can see from the photo above of Nicky and her b/f at Joan's on Third a couple days ago, she doesn't really look preggers does she?