Leave it for now.

Kim gets down on her hands and knees and crawls towards the pair of you, somehow shedding her skirt in the process. "I never really thought about having a Master or Mistress, before, baby, but just looking at you two makes me wet enough to want to fuck you both in the middle of the street."

You look over your shoulder at the UPS girl, who grins and shrugs. You turn back to Kim, deciding that it really doesn't matter all that much.

The girl looks down at Kim. "But you're not really wearing the proper attire for our Master, Kim-slut." Kim shivered at being called that and rose onto her knees, thrusting out her chest with her hands behind her back. The girl places a hand on your shoulder to get your attention. "Master, we have to get this little whore a collar and leash. She doesn't need to wear anything else unless we take her outside."