Robb lets the mob have her

Robb looked at her with a sigh. "You acted very stupid, Sansa, you know that."
Immediately she started crying again. "I'm- I'm sorry, Robb."
He caressed her cheek. "I think you deserve punishment."
She looked up with big eyes, obviously scared. Robb smiled. "A night in the brothel should teach you your place."
Her eyes widened in shock. "What do you mean?"
"I think", Robb explained, "that maybe you were spoiled too much all this time. You could always get away with doing stupid things because you are a princess. But you'll learn some humility when they are done with you."
Sansa clearly panicked, not believing what was happening. "Please, Robb, don't do this, I'm sorry, I'm sorry, please-"
He didn't pay attention and opened the door to hail two guards. They were middle-aged men, dressed in the flaming heart of Stannis Baratheon.
"Bring this young lady to Petyr Baelish, with best regards from Robb Stark. Tell him she will serve anyone free of charge for one night. I will cover his expenses."
The guards looked at him slightly shocked, but did as they were told and grabbed Sansa at both arms. She was drenched in tears now and still begging Robb. "Please, brother, I love you, I'll do anything..."
As the guards were dragging her out of the door, Robb spoke again. "Oh, and if she's too much trouble or screams, you're both welcome to use her in any way you please."
With another look of disbelief, the guards left him, a weeping pale princess with auburn hair and ice in her eyes between them. Robb shook his head in sadness. She was so pure and beautiful, he really hated having to destroy that. But she needed the lesson.

The journey had been long and the day was coming to an end. Robb considered if he wanted to have dinner and go to bed, or maybe have some fun first. The Forrester girl had been cute, maybe he should pay her a visit?
Before he could reach a conclusion, there was a knock at the door. "Come in."
It was the Forrester girl, this time accompanied by another girl about her age, lighter brown hair and softer, more southron, somewhat sensual features.
"Lord Stark, we are to make sure you have anything you wish for. Is there anything you need?"
Robb took a good look at them. The new girl seemed less shy and smiled at him with fluttering eyelashes, clearly interested in him. "What's your name?", he asked her.
She made a step forward. "I'm Sera Durwell, milord, at your service. I was a handmaiden to Lady Margaery, and I am unbound and available for marriage."
Mira Forrester suppressed a slight gasp, and Robb smiled. Did she seriously hope for him to marry her? She was a pretty thing, no doubt, but the Lord of Winterfell would only ever marry a daughter of one of his bannermen or a maiden from another Great House. She would be nice entertainment for one evening though...