For this story, the guy is Steve and the domme is Katie. One night, Steve and some friends are away for guys trip at a house and the boyfriend drunkenly rants how Katie loves to serve for him. He spanks her, and she loves him taking charge among other things. Also, she apparently worships him. One of his buddies records this "brave" speech and sends it to a girlfriend of the gf's, and passes it along to the dear domme Katie.
The next morning, there's a loud knock of the door. A friend opens, Katie asks if Steve is in, and storms inside. As Steve is sleeping on the couch, Katie sternly calls his name out to wake him up. His eyes open up slowly, his gf frowning at him in front of the couch.
"You give the orders, huh" she is cornering a whimpering brat who is massive trouble. "I love obeying you? Your cock is a holy shrine to me?"
"I was just kidding," Steve cowers. "It's all a joke. Just making it clear that I don't take it, right," his eyes are begging her not to reveal the dominant/submissive element of their relationship. The fear and humiliation is delicious.
"Get up," she commands. "Get up now."
"Wait, can't we talk about this later..."
"Did you not hear me?"
Steve hesitantly resigns himself, and lifts himself out of the couch. Katie pulls his pants down, his bare bottom for his three buddies to see. She firms up her hand, bends poor Stevie, and starts spanking his butt red. The guys are laughing hysterically.
"I brought a few things over, I want your friends here to know who's truly charge, and how much you love it."