On her back! Pull out!

Deciding that you don't want to leave a child of your blood as evidence of your misdemeanor, you pull out of her vagina with a slurping sound, and streams of cum splatter on her round buttcheeks as you grunt your pleasure.

Ordering her to clean herself and get dressed, you weave a divination Pattern which reveals that you were right to pull out: she's at her most fertile time of the month... Or perhaps do you regret not fathering a little bastard?

You then release you Pattern. She is a bit confused, but then gets on horseback and follows you, eager to reach the town's safety...

This matter taken care of, you resume your journey...