At a rowdy 18 year old’s birthday party, you might expect the restaurant or the ladies bathroom to get trashed, but not the birthday girl’s 15 year old sister.

The Moore – Kutcher – Willis clan got together this past Friday night to celebrate Scout Willis’ 18th birthday with a 20’s flapper-style bash at L.A. restaurant Cicada. Guests included Dita Von Teese, Marisa Tomei, and Rumer Willis, doing her best to let everyone know exactly what kind of underwear she was wearing.

But the real star of the night was the youngest Willis girl, Tallulah Belle, who spent the night smoking, drinking, and hitting on older men. She reportedly ended the night by stumbling out of the restaurant with a pack of cigarettes and a pack of her friends, who attempted to keep her upright on her walk of shame to a waiting vehicle. Step dad of the year, Ashton Kutcher, looked none to happy about it either.

Now, to be honest, the drink the paps have circled in the above picture looks like nothing more than ice water– which may be damning enough evidence in itself, since no one drinks ice water at a party unless they’ve already gone overboard with the alcohol. If you’re going strictly non-alcoholic, you’ll have either soda, or juice, or a Redbull in your glass.

She’s also shoeless– another likely sign of inebriation– and in the pictures of her leaving the restaurant, she is quite clearly carrying a pack of cigarettes.

Rumer may finally be on her way out!

Demi Moore brought Tallulah Belle to the NYC screening of Flawless.

No Rumer in sight!

This is probably because Rumer lives in LA and the screening was in NY, but I like to think it’s because the Moore-Willis family has finally decided to disown her.

Bruce Willis was also there, with model Emma Hemming, who I assume is one of his hos in different area codes.

My very favoritest of all the Willises, 14-year-old Tallulah Belle, was spotted on Robertson with her dad Bruce and some chick. I believe this is former Playmate Karen McDougal, but I’m sure you guys will correct me if I’m wrong. I can’t ID the other girl, but I assume she’s some friend of Tallulah’s.

Anyway, how fabulous is Tallulah? She’s just so freaking great on camera. I love her and I can’t wait until she’s a little older and starts showing up more often.

And to celebrate new pics of Tallulah, I’ve included here the Tori Amos video for “Talula,” which always pops into my head when I see this little Willis gem, and because I’m just a shameless Toriphile.