Offer him a choice - 5 dollars or 5 pictures of Carrie.

You check your surroundings. The neighborhood is quiet. All of the nosy neighbors are asleep. Completely unconcerned with being seen, Carrie stands next to Adam's car awaiting your answer.

"Alright, I'll offer him a choice."

Carrie beams at you. You tap on the passenger side window. Adam rolls it down, looking at you curiously. Carrie crosses her arms and shivers a bit. It's gotten fairly cold outside. Little goosebumps cover her naked body.

"Okay, Adam. For your tip, you've got a choice."

You lift your phone and show him the app, "Either I can tip you five dollars."

You lower the phone and gesture towards Carrie, "Or you can take five pictures of my girlfriend."

He stares at you blankly.

Carrie chimes in, "I'm not gonna lie. I'll be pretty offended if you choose the five bucks."

Adam stutters nervously, "What... what exactly do you mean by take five pictures?"

"Well, I'll invite you inside and you'll get to play photographer and Carrie will be your model. You get five pictures and she'll pose however you want."

"Are you serious?"

"You're looking at her naked right now. Why would I be concerned about you taking a few pictures? Carrie has sworn to never wear clothes again. Trust me, she isn't shy."

Adam switches his focus between you and your girlfriend several times. Is he actually having trouble deciding? This should be an easy choice. Maybe he just thinks you aren't serious.

"Come on, Adam. I think that Carrie is getting cold. Make up your mind."

"I... I guess I'll go with the pictures."

"Awesome. Come on inside."

Carrie practically runs to the front door. You linger by the car and wait for Adam. He gets out, body language showing that he's still unsure about this, and locks his car. The two of you walk to the door. You unlock it and Carrie instantly jumps inside.

You hold out your arm and say to Adam, "After you."

He gives you one more perplexed look and enters.