Wang Dang Atomic Tango

 is a quest in Fallout: New Vegas.

Quick walkthrough

 * Speak with James Garret at the Atomic Wrangler to start the quest.
 * Find the three "escorts" around town:
 * 1: A ghoul wearing a cowboy suit. Beatrix Russell is found in the Old Mormon Fort. You either need to convince her with a speech check, barter check, or you can give her a bottle of Absinthe.
 * 2: A "smooth talker". This can be either Santiago or Old Ben.
 * 3: A "sex-bot". Fisto, found at Cerulean Robotics, must have a programming holotape made by Ralph. Then, hack the terminal (science 50), (or lockpick the cabinet if you have a lockpick of 50 to get the pass card) to program Fisto. There's also the key to the cabinet in the cafeteria (on the floor, in front of the television set by the decayed corpse) -you need the holotape before you can activate the robot. You can 'test' Fisto before telling it to go back to the Atomic Wrangler. The screen goes dark and you can hear a peculiar drilling sound. After the 'testing' has ended, your character experiences numbness, which 'is normal'.

Detailed walkthrough
The quest begins by speaking to James Garrett. He is one of the Garret Twins, owners of the Atomic Wrangler in Freeside. Ask James if he has any work for you, and he will propose that you find him suitable escorts (prostitutes) for clientele with very specific interests. He has three unique requests: A ghoul dressed up in a cowboy suit, a smooth talker, and a robot.

The ghoul wearing a cowboy outfit is Beatrix Russell. She can be found at The Old Mormon Fort. Convincing her takes either a speech check or a barter check, otherwise you can bribe her with a bottle of absinthe. When she agrees you can either head to the Atomic Wrangler to get paid for the first escort, or find the other two first.

The smooth talker can be either Santiago, one of the dead beats Francine Garret hires you to find in the quest Debt Collector, or Old Ben, the chatty stranger standing outside the North Gates to the Strip. To recruit Santiago, just ask. For Old Ben, you'll need good charisma and high Speech skill. It is possible to get both smooth talkers to agree, however only one will give you the reward. If you chose Santiago AND Old Ben, Ben will show up at the Wrangler but you will receive no reward nor can you receive his services.

Behind the scenes
The name of this quest is a reference to the songs "Wang Dang Sweet Poontang" and "Wango Tango" by Ted Nugent.