Toy with her first

"I know what you want," you say, rubbing her ass, "You want to get fucked and filled.
Over and over...and over...and over again. Right?"
She nods in agreement.

"Very well- you'll get it...but only from me. I discovered you...I baited you...I set this all up for you.
You're going to be my breeding sow."

The whole place is now full of sounds.

Grunting men.
Slapping flesh.
Muffled cries.
Smacking asses.
The sound of the cuffs clanking in motion.

Someone knocks on the door and you open.

"You going to fuck this one. There's a line."
"There's a bit of misunderstanding. This is my girlfriend," you say, lying, "She did all this to get her friends here.
They're the real sluts. She's going to listen to them get fucked as foreplay."

The Asian girl yells into her gag and tries to free herself.

"She's really into the roleplaying."
"Yeah, I can see that."

Just then, a man lets out a really long, satisfied grunt from the next stall.

"One's free," the guy says, "Have fun, you two."
He closes the stall door.

You move in closer again.

"Let's make a deal. If you agree to get one of your slut friends to come with you, I'll fuck you once before we leave.
The redhead is 1. The kinky blonde is 2. Your tall, slut friend is three.
With your left hand, tell me which one you want to join us."