He wants to show her off

Resting a hand in her hair as she slowly sucks and licks him clean he looks down on her "I like the dress, it's not unlike something I had planned to get you to wear at some point down the line.
It makes me reconsider though, I think we'll head out instead of eating in.
So my little cock cleaner, have you ever heard the term hotwife?"

Pulling his cock out of her mouth she looks thoughtful as she swallows some of the saliva and juices in her mouth "Um, married women who look hot?"

"Hah, that part ironically doesn't even matter. No, it's wives or other partners that are shown of and shared.
That's where you come in, you're going to pretend to be my wife as we head over to some bars and night clubs not far from here. You'll show of that tight body of yours and flirt, and dance and get groped.
By the end of the night you'll have more than just my load running down your thighs."

'The heck? I know he calls me a toy, but does he think he can just lend me out, parade me around so everyone looks at me... touches me... uh... fuck, that kinda sounds hot... why am I finding everything hot?'

Grabbing her hand and pulling her up he starts to lead her towards the entrance "I like your freshly fucked look, so you're ok as you are. Just stay here as I go put on some jeans and we'll head out.
Oh, and leave the cum, as I said I want it running down your thighs while we're out tonight"

It's 20 minutes later when they drive past a bar and park down the street from it.

Pulling out two rings from his pocket, Todd gives one to Kara "Here, it works better if they see you're married."

"Uh, thanks... I guess it's that whole forbidden fruit thing?" she slides the ring on her left hand ring finger and studies her hand.

"It's thinking you belong to someone else, and thinking it proves their manliness if they steal you away, or something.
Before we head in, I want you to make up an alias, a name to use that's not your own"

'Ok, so I'm going to play pretend that I'm someone who pretends to be his wife? Weirdo... Hmm, there was that name I came up with to go undercover at that club...'
"I guess, Linda Lee? Would that work?"

"That'll work just fine, tonight you're not Kara the repressed slut, you're Linda the flirty wife on the prowl for sex, Linda is in fact an out and proud slut so here's your final piece of advertising" he hands her a silver necklace.

She looks a the necklace curiously before putting it on "Hmm, ok, I am guessing the H and the W on the necklace is to advertise that I'm one of these hotwives? But what's the spade with a Q in it?"

"That's your color preference, which will have the dual benefit of both attracting some men because they think you'll want them, as well as attracting others to prove your preference wrong."

'Color preference, what does he... he can't mean.... of course he does, I'm glad we're nowhere near where my friends usually hang... though, hah, if I wore that when I went out with James I'm sure he'd not been so shocked I tried to kiss him... I guess that really never would've worked anyway with where my preferences seem to lie when it comes to assertiveness...'
"I'm not entirely sure about... actually... why do you have those wedding rings and this necklace anyway?"

His amused expression vanishes as grabs her upper arm "Let's get one thing clear you walking cum receptacle, you don't ask me shit, you don't even think about shit, you just do as you're fucking told and do your best to enjoy the ride, ok?"
'Guess I hit a bit close to home'

As they leave the car Todd pulls out his phone and starts intently fiddling with it as Kara hurries to catch up with him.
'Ok, you can do this Kara... or Linda I guess, yeah, it might be easier if I try to just be Linda, the, uh, really hot wife of this huge douche bag that just ignores her... whoa, we're... no.. I am getting a lot of stares...'
Almost everyone around the entrance can't help but look at what seems to be sex on legs following some chump that's busy on his phone, her legs are being shown of most excellently in her inherited Louboutins as the very very short dress does little to hide the fact she's wearing nothing underneath.