Let her go, for entertainment

"ok slut, we are going to play a little game" The man says, "you are going to continue your mission, and we are going to follow and watch you, but every time you see someone you are to strip off an article of clothing, drop it and keep going."

The man presses his knife a bit harder to make his next words more enforced.

"disobey and we will make sure you regret it"