Of course, he can choreograph the whole thing

"So how did it start?" Curtis asked.

Luna shrugged reproachfully. "Simple. I came over so that we could fuck. You left her unsatisfied, so I had to step in."

Curtis grinned, "Don't lie to me. I bet you were jealous about me screwing your little sex toy. You were worried she'd have a fit of conscience and leave you after how good I was. But then, when you were eating her out you tasted my cum in her. Am I wrong that you were jealous of that, too? You wanted to feel my cum inside you as well."

Luna wondered how he knew all of that. "Well, you got one part right. I started with oral," she said. She approached him and got down on her knees. She was only going to **** herself if she didn't get this over with. She'd been with a lot of guys and girls and knew that she could end this quickly. She took his hard cock into her mouth, surprised how difficult it was to fit the whole thing in. She looked him in the eye and understood why her sister had been attracted to him, as much as she hated to admit it. His cock felt so smooth against her tongue, and she sucked it in deep. She was hyper aware of her sister watching. 'Don't look at me, you're not supposed to see when I do this,' she thought. She felt a thrill run through her traitorous body.

"God damn, I can see why you're so good at your job!" Curtis said, appreciatively. He watched her lipstick leaving dark smudges on his dick. "Hey Maxy, do you know what she does? Did you know that she's a pornstar, but one of the ones that doesn't show her face? She does mostly **** scenes. I recognized her by her awesome ass, after seeing yours for so long."

Maxy shook her head, miserably. Her eyes were locked on her sister, her lover, working on his cock. She didn't know what her sister did for a living, but all of the pieces clicked together enough for her to believe it.

Curtis was ready to move on. "Did you use a strap on her next?"

Luna shook her head, spit dripping down her chin. She tried to slurp it up. "Other way around. Which, I guess, is convenient for you, huh? Get on the floor." She rose to her feet. Dammit, she wanted to finish him with her mouth, but she could tell he was bored with that, and if she insisted she might turn him off. She sighed. Anything to get this over with. Give the fuck what he wants and maybe he won't ruin her and Maxy's relationship with their kids. Well, she thought of them as the sisters' kids, since they were really the ones who raised them.

Curtis watched as Luna began to take off her clothes quickly and efficiently. The normal way. "Stop," he said. "You're seducing me like you seduced my wife. Do you want to do that half-assed?"

Rather than responding vocally, Luna began to move a little more sensually. She popped the button of her tight black jeans and worked herself out of them, using her hips with only her hands to stabilize the pants. She turned to give Curtis a view of her ass, looking over her shoulder to watch his face while she slowly revealed her money maker. She had him. She sat back on his lap, feeling his cock under her, and took her hands. She placed them on her belly and slowly lifted them to her breasts, her shirt rising as well. His hands on her tits, she pulled her shirt the rest of the way off. Luna focused on him entirely, unable to meet her lover's eyes.

All that was left was the underwear. A thong that split her cheeks, lacy and bright red, like blood. She pulled it to the side, knowing that guys liked it better when she left it on. She lifted just high enough to feel his dick line up, and then sat. She pushed more back than down, feeling it split her open. God dammit, it's good. She realized she'd fucked up. This must have been a fake-it-til-you-make-it situation, where she'd gotten herself horny, because it was ridiculous that this man ordering her around, blackmailing her into fucking him could possibly turn her on.

Curtis felt her wet pussy against him and knew he had her. He pushed up into her, though his range of motion was limited. He was sure she'd done that on purpose, picking a position in which she had all the control, but he didn't mind too much. His domination would start mentally, and let her ease into her own corruption. Well, with some help.

Curtis leaned in and whispered in her ear, "have you ever felt better than this?" He slowly fucked her, watching her ass press against his stomach. Damn, his powers did not skimp on it.

Luna moaned, her head rolling back.