Is our favorite Disney duo back on again?
Here's what went down...
Zac, dressed casually in a red flannel shirt and jeans and Vanessa, in a tight grey tube dress, arrived together along with pal Brittany Snow, who also donned a tight tube dress for the occasion.
"They were inseparable throughout the night seen dancing, drinking Belvedere and canoodling," a source said, adding that Vanessa "only broke from Efron's side to dance with Brittany on the couches at their table."
So was it all just a friendly encounter? Doesn't sound like it!
"They were directly next to our table and were all over each other, dirty dancing and making out," an eyewitness said.
The three chatted and observed the crowd from their table before a briefly taking to the dance floor.
And their beverages of choice? Nicky and Kyle were spotted drinking Patron Silver, while Paris wisely opted to party responsibly by drinking only water.
The family partied at the table for the majority of the night and left just before closing—which is when the real drama went down...and for once, it had nothing to do with the famous revelers.
Right as the girls were getting ready to leave, a shooting went down right outside of the club, forcing the Hiltons and the rest of the patrons to stay inside by police order.
"Shooting outside the club. NOT a good sign! This is not very L.A.," Richards tweeted at the time. "Cops won't let us get r car...cops said to go back inside its a crime scene and we can't leave."
However, it wasn't long before the weary crowd was allowed back out.
"Yay! We r out of here! Scary! Not clubbing again 4 a while! Sorry," Richards wrote. No need to apologize! In fact, maybe some fellow club-happy celebs could take note...
While the Hiltons were having the fun scared out of them, Paris' ex, Doug Reinhardt partied with his usual crowd on a table packed with bottle-blondes and jocks. The crew was seen passing champagne and vodka and nursing Bud Light from the bottle.