He betrays his friend further

Shower sex was rarely a good idea, in Curtis' experience. It was slippery, and water tended to wash away the woman's natural lubrication. This was why he took it slowly, pressing himself into his best friend's wife. He met resistance, but the tempo compensated enough that everything was magnified. From being able to shove in without issue to the sensation of his barely fitting into her and rubbing every little spot, it hardly mattered. This gave him a chance to watch this gorgeous, fit woman experience his every inch, as if him filling her were like a revelation: everything coming into place. She shuddered and put her hands flat on the tiled wall, then her cheek. Her arched back accentuated her beautiful ass. There was no risk of slipping, no loss of balance. They anticipated each other's bodies and movements, compensating for each other.

"Jimmy could... be home... any minute," she reminded him, as if it were what she was supposed to do, and hated herself saying it.

"That's even better," he replied. "He doesn't deserve you. Is he any good in bed? Can his dick compare to anyone you've ever fucked? Does he even get you wet?" Curtis realized that he really, really enjoyed fucking his friend over. Oh well.

"He never has," she said. He leaned forward, feeling more of her body against his.

"Of course not. Jimmy's a great guy, and an awesome friend, and I'm sure you love him. But a woman like you, with your insatiable lust needs someone who can keep up with her. You need a lover who can take charge. You want to submit entirely to someone who knows how to pleasure you. All other relationships come second. And with Jimmy, you could never serve him, because you just want to dominate him. You could never see him as anything other than weak. Am I wrong?"

"I... I want you," she said. "I'd do whatever you want, I just need you to keep going," Chelsea said. Her voice hitched. Curtis put a thumb to her lips and she sucked on it sensually.

Curtis smacked Chelsea's ass in mild punishment while not stopping his slow ministrations on her cunt. "Then you don't tell me what to do. I'll keep going because I want to. If I pulled out right now and told you that you don't get to cum, then you're not allowed to cum." Instead of pulling out, his dick bottomed out in her and he pressed in until she was nearly off her feet. "You're lucky that this is what I want. Am I the first man you've submitted to?" he asked, excited to change her past even more, to make her more and more depraved. "I think you've always submitted to the most powerful man in your life, and it's never been Jimmy. It's always been a man above you, like your father who you seduced first, and then teachers, and your boss. It drives you wild to do whatever these men want from you, to give up your agency. The more they demand from you, the more turned on you are. Now and forever after it's me." He paused, watching her face. She was clearly listening, but tongued his thumb. He felt her grind her ass against him. She wasn't sure to make of what he said, but she wasn't protesting, so some of it rang true already. Still, to be sure, he completed with the magic words, "am I wrong?"

She came on the spot. Her legs almost gave out and he had to hold her up. "No one... like you... Sir," she gasped.

"That's good, my Slut," he whispered in her ear, pulling her against him, hand on her neck. "Then this is what's going to happen when your husband gets home..."