Sister submitting

Britney was kneeling on the floor of her stepson's bedroom, her shirt partly open to show her tits whilst her hands were behind her back. And next to her was her stepson, who currently had his pants down and his cock out.

Jet was a handsome young man, who had short black hair and slight stubble. He was in college, studying film making, but he still lived at home. And right now, he had his stepmother on her knees as his cock was shoved down her throat.

Britney moaned around the shaft, as Jet kept ramming his cock down her throat. "Fuck yeah. You like that, mommy? You like sucking your son's cock?" Britney moaned and seemed to be trying to nod, a Jet pushed more of his cock down her throat. "Yeah, you won't have to fuck that loser anymore. I'll make sure you're taken care of." Julia didn't know if Jet was talking about her father or someone else, but she could tell Britney was enjoying her at that moment.

Julia wanted to run in and ask what the heck was going on, but her body was completely frozen, as she kept watching from the doorway.

She was terrified they would spot her, but she kept hidden behind the door frame and only glanced out to stare at her sister acting like a total slut for her stepson. Britney then looked up at him and pulled most of his cock out as she did.

"Please sir," she moaned around the tip. "Fuck me."

"You want me to fuck you?" He asked, as she nodded. "Not yet." He pushed his entire cock into her mouth and she groaned, barely able to breathe because of how big it was. "Not until you take your daily punishment for being such a cheating whore." She held her there for several moments and released her, Britney pulling back and gasping as she fell back off his cock.

Jet turned and Julia was scared he would spot her, but he moved over to a couch in the room. He then returned holding something in his hand. Britney moaned at the sight of it, as Jet used his foot to roll her over. This let Julia see that her hands were cuffed together.

"Ass up." She didn't argue and pushed her ass up, wiggling it a little as Jet pulled on the leather horsetail flogger. He then swung it towards Britney and struck her ass, making a loud cracking sound as it struck her naked flesh.

Britney screamed, but didn't pull away as Jet hit her other cheek. The snapping sound made Julia flinch, as she kept watching and hearing her sister scream and moan. Jet kept slapping her with it, her sister's naked ass getting redder and redder with every strike.

"What do you say?" Jet asked, hitting her again.

"Oh, thank you, sir."

"Thank you for what?" Jet hit her again.

"Thank you for punishing this cheating whore wife." Jet kept hitting her, Britney thanking him over and over. Julia couldn't believe it, but Britney actually seemed to be enjoying herself. And soon, the whipping only resulted in pleasurable moans. Until Jet swung the whip upwards and struck her pussy. "FUCK!" She screamed, shaking as she almost fell over. "Oh god!"

Jet chuckled and struck her several more times before finally stopping. Britney panted at this, as her stepson threw his toy away and moved towards her. He then reached into his pocket and pulled something out. A ballgag