Give him a cuckold fetish.

Of course, you could do that. You could march into the other room, tell Jennifer that you’d been lying before and her husband had no such fetish. It would be easy. She’d believe you, and it would solve the ‘problem’ right away.

But it would also ruin what you’d spend so much time setting up, and that just wouldn’t do.

There was a far better solution. Looking at Marcus, you smiled and said, “It’s true, I was lying.” That admission seemed to assuage his anger, just a little, but you weren’t done talking. Not even close. “The thing is though...ever since Jennifer brought it up to you, you’ve been thinking about what it would be like to be cucked, haven’t you?”

There’s a slight glassy-eyed look that came over his face as you spoke, and when he recovered he looked conflicted. “I mean...sure, of course I did. How could I not, after you spread that stupid lie?” He had a point. The easiest way to make someone think of elephants was to tell them not to.

“That’s not what I mean, and you know it. You started thinking of some big, tough motherfucker going to town on Jennifer while you watched, and it was hot. It turned you on.” As you talked, you could see the resistance starting to crumble on his face. His anger was turning into open embarrassment, and he moved his legs to hide his groin more. Pointing, you asked, “Let me guess, are you hard right now? Just from coming in here to talk about it?”

Marcus turned away from you, unable to bear to face what you were saying. But finally, he admitted, his voice quiet, “...yes...”

Deciding to use some honey with your vinegar, you tried to sound more friendly, and told him, “Dude, you don’t need to freak out. So what if being cucked turns you on? So what if you fantasize about other men fucking your wife? So what if it gets you so hard it’s hard to think straight?” Even listing those hypotheticals had an effect, you could see the lust building up behind his eyes. “There’s nothing wrong with that, dude. Embrace your freakiness! Tell your wife that you like it, that I was right. Hell, ask her to give it a try before rejecting the idea!”

He was nodding along to everything you were saying, only to stop for a moment, some fight coming back to him. “But, Dustin, you were lying still, shouldn’t she know that? I only got the kink after she told what you said.”

If he thought that was going to get in your way, he was mistaken. Laughing, you told him, “Man, that doesn’t matter. You won’t ever tell her that I lied, because either way you’re still a cuck.” Then you pointedly looked at the door and asked, “So, are you going to go talk to Jennifer? If you do, maybe suggest I could be the first test subject? We actually got along pretty well today, maybe she’ll be more comfortable with me than any other guy.” He nodded to that, then left.