Harry Potter and the Connubialis Hex/Grimmauld Place/Shop to Diagon Alley/See what Luna's doing
From Create Your Own Story
Harry walked up to Luna and spun her around. He got his first look at her outfit and it was not her usual attire. She was wearing an extremely low cut top that showed off her ample cleavage. She also had on a skirt that was just long enough to cover her ass, just, if she didn't move in any way. While slightly caught off guard by her appearance Harry can see she has a nervous look on her normally nonplussed face.
"What's wrong Luna? You seem a little out of sorts."
"Oh Harry. It's just... Since the war, money's been a little tight at home. What with the crumpled horned snorcakc's horn exploding and destroying most of our house. So I need to try and make some extra money for the time being."
Luna's words and her outfit made harry realise what she ment by this. She was trying to whore herself out to survive. Part of Harry was disgusted that one of his friends would need to resort to this. However another part, a darker part was turned on. The idea of being able to fuck Luna's brains out for a couple Galleons causes his dick to harden up slightly.