Guests of the Las Vegas Pussycat Dolls Lounge got a sweet surprise last night: Drew Barrymore and Justin Long, who came in to check out the Dolls’ sexy show.

Drew, who played a Pussycat Doll in "Charlie’s Angels: Full Throttle," cuddled with Justin in their VIP booth and knocked back Dom Pérignon champagne and Grey Goose cocktails.

The two were in Sin City to celebrate Justin's brother Christian's birthday. After the show, the Dolls visited the cozy couple’s VIP table to take a few photos and mingle with the pair before they headed to the ultra VIP late night spot, Noir Bar.

Drew, 32, and Justin, 29, have been dating since last summer.