What happens in Vegas...ends up on the Internet (if you're an Olsen).
In case you can't tell your twins apart, that's Ashley getting cozy on the dance floor last night with National Treasure's Justin Bartha.
Before hitting Jet nightclub at the Mirage, they had a romantic dinner at Stack. The duo shared yellowtail sashimi, spicy wings and black cod miso lettuce cups.
Once inside Jet, Ash and Justin hung in the VIP section until 2 a.m. with seven other friends. Ashley's pick of poison? Grey Goose vodka, Red Bull and Patrón.
Ironically, Justin's in Las Vegas filming a movie called The Hangover. Wonder if life imitated art for this couple the morning after?