Playing on the Old Joana

Playing on the Old Joana is an unmarked quest in Fallout: New Vegas.

Walkthrough
Make your way through the playing halls of the Gomorrah and enter the courtyard. Here you will meet some prostitutes, one of them being Joana.

Sweet-talk her and she will agree to sleep with the Courier for free. Once in her room, she can be talked to some more to start the quest Bye Bye Love.

Behind the scenes
"The old Joana" is Cockney rhyming slang for a piano.