Yes, send her home as is

You shove her off your lap and she lands square on her tender bottom. She sits up on her knees and reaches down with her bound wrists to begin vigorously rubbing her burning bottom in a futile effort to help subdue the throbbing pain.

You stand her up to her feet and face her towards you for further chastisement.

"I assume you learned your lesson. And if not I'd happily teach it again“

She signs and reluctantly agrees, fearful of any future punishment.

“Yes sir, I did.”

"Good girl. Now run along and go straight home."

She does a double-take, looking at you, then down at her body, and then back at you, incredulity mixed with shame.

"L- like this?"

"What's wrong with that?"

“I can barely walk without falling over myself!”

“That sounds like a good thing to me, not a exactly a problem.”

“... people might see me! Please!

“You should have thought about that before challenging me to a duel then. Actions have consequences, young lady.”

“I can’t go home like this!”

“You can walk now, or I can put you in the stocks until dusk when the streets will be more crowded.... with your spanked bottom on full display”

She shuffled away, her pants now sliding down to her angles with each step. She tries to not trip over as her ass now shines as bright as a beacon to any with the fortune of viewing it. “I hate you so much!”

"You did try to attack me with a sword. This is self-defense.. in a way."