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.
 * Speak to Ralph at Mick & Ralph's about a holotape for the robot then upload it into the computer at Cerulean (this step can be skipped if you have a Science skill of 70 or higher.
 * Return to James to collect your pay and finish the quest.

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 or the Confirmed Bachelor perk. 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.

The robot is found at Cerulean Robotics. Cerulean Robotics can be a bit tricky to find if you are using the map-marker from the quest. Go to the Old Mormon Fort side of Freeside. Head northwest from the Mick and Ralph's Crier boy, past the doorway to the Silver Rush side of Freeside. Continue under the overpass and you'll come to some old train tracks. Head southwest along the street that runs parallel to the overpass, past the two burnt out cars, where it will bend to the southeast and come to a Wolf's Bakery sign. Head south past the burnt out bus, to the barrel with a fire in it (not the one to the southeast). The doorway is just a few steps to the east. There are a few Giant Rats inside, and the large assembly room contains a robot in stasis. The computer is an average hack (50 Science). There are also two pass keys to unlock the computer. One is behind an average lock on one of the cabinets in the assembly room, the other is on the floor in front of the television next to the decayed corpse. Once in the computer, you must upload an operating program.

To get a holotape program to upload to the robot, visit Ralph at Mick & Ralph's. He will mention the robot at Cerulean, and then will agree to write the program, telling you it will take a couple days. It took 24 game hours to be ready. Take the program back to Cerulean and upload it to the robot. It will power up and you will have a chance to test it out. The screen goes dark and you can hear a peculiar drilling sound. After the 'testing' has ended, your character experiences numbness, which 'is normal'. Whether you choose to test it or not, you inform the sexbot that its owner is James Garret and it heads to the Atomic Wrangler.

With all three escorts found, head back to speak to James about your pay. This will finish the quest.