Kristin and Stacie arrive in Las Vegas with plans to meet "Mr. Right Now."
'The Hills' theme song
Charlie advises Spencer to look for signs that Heidi might be trying to get pregnant.
Kristin and Stacie settle into their hotel room and make plans to go out.
Spencer takes Heidi to dinner to look for signs that she's trying to get pregnant.
Kristin and Stacie hit the club scene in Vegas to scout for boys.
Kristin excuses herself to go make a phone call.
Stacie checks in on Kristin and finds she didn't spend the night alone.
Audrina goes out with Derek, and tells him it's over with Justin.
Kristin and Stacie have drinks with Justin, and they decide to go out to a strip club.
Kristin, Stacie and Justin let loose at a cabaret club.
Justin watches Kristin and Stacie get personal dances from the cabaret girls.
Spencer tells Charlie he found a box for a pregnancy test, and wonders if Heidi's pregnant.
Kristin and Justin wake up together after a night of partying.
Kristin and Justin wonder what will happen between them when they get back home.