Time to reclaim her....

"Come on baby... don't you want to reclaim me? I was a bad girl today..."
You stick your fingers into her snatch from behind, feeling the warm wetness. "I know... I saw you..."
"Mmmmm.... I thought that you might have been watching..."
"I didn't stick around though..." You lay on your back, and Jenna rolls over, kicking her shorts down to her ankles as she spits on your cock and starts stroking it.
"Jack's been hitting on me for years..." her sultry voice tickles your ear, and you can feel her breath on it as she starts to stroke. "I always shoot him down. Poor Karen: She told me once that he had an affair, when Allison was around 7 or 8, with one of her teachers. And he flirts all the time, 'with any pair of tits'."
"So this time... you didn't shoot him down, huh?" You start to finger her, rubbing her clit and hooking your fingers inside from above. Her breath intakes sharply, and she starts to kiss your neck.
"He was so surprised..." she continues,"but once these lips were around his cock, he didn't complain."
"Bad girl.."
"The worst, baby." She's stroking harder, twisting when she reaches the head every time.
"I let him titty fuck me. He said Karen doesn't let him have a lot of fun in the bedroom anymore. He told me he thinks she's lost interest in sex. Hah! He should have seen her tonight." she starts stroking with both hands now. "I think she would have taken these two guys into the bathroom if I hadn't been there."
"Poor girl. I wish I could help her out, somehow."
Jenna starts deepthroating, and you give her a "helping hand", really plumbing the depths of her throat. "**** on my cock, Jenna..." she splutters and coughs. "Get on your hands and knees, you little slut." Jenna obeys, and in a moment, you start to pound her straying snatch. "Did he fuck you good, Jenna?"
"Mmm.... ooh...ah...ah..ah.. He... didn't...get.. the chance..." she looks back at you with a wicked grin. "He popped on my tits before I could get that far...."
You laugh, and pound harder. "What a loser."
"Yeah... I laughed at him when he couldn't recover fast enough. He wanted to fuck me, but I told him I couldn't... oh fuck me baby right there.... I couldn't afford to wait..."
You are loving this. Jenna is so wicked. You pound harder.
"I think... I want to fuck Karen..."
"Mmmm.... Hm?" she turns, a look of dismay on her face...
"It sounds like she needs a good dick. I should give her one, don't... you.... think?" You punctuate each word with a powerful thrust, until Jenna cries out in orgasm...
"But... it's mine..." she whines, but you get the sense that it's for show. She knows the score.
"You don't really seem to be in a position to object, my little hotwife." Jenna collapses flat out, and you climb on to pound her prone.
"I guess...mmm...I guess...not..."
"And you'll get to watch..." you grab a fistful of her hair. "From the closet, you can watch me take your sister and give her the ride of her life. Would you like that?"
Jenna whines. "You're so mean..." but the words don't match the look on her face. She knows that it's only fair.
"You love it, admit it."
"....I do....."
"You want me to humiliate you. Fuck your sister in our bed while you sit in the closet and touch yourself."
"....y.....ye......yes....."
"I can't hear you, Jenna."
She turns, tears in her eyes. "YES! Fuck my sister! Teach me a lesson, baby! Give her your amazing cock!"
The words send you into your own orgasm. "Fuuuuuuuuuuuuuck....."
After the afterglow, you lay back, with Jenna nestled in the crook of your arm.
"I was being serious about Karen, but I won't do it if you're not on board. That's not how I want this to work. You have the power to veto, if you want."
Jenna looks up at you. "I know. I want you to do it. I want to make you happy, because you've never failed to make me happy all these years, and I failed you."
"I forgave your failure, baby. You can say no."
"I know. I'm not saying no."
You look her in the eyes.
"No matter what... in this together, right?"
"Right." She kisses you, and you drift away into pleasant dreams.