In....

{if KarenSFantasy = 0} It's uncanny. Exactly one day after your fantasy of fucking Karen as you showered in this same bathroom, and now she's enticing you into a shared shower together. Are you asleep? {endif
}Karen takes advantage of your hesitation to pull at your button and zipper, pushing down your shorts and boxers before you can say anything. Then, she turns to head toward the shower, dropping her panties as she goes. "We're already naked, James. Just get in." She turns the water to spray from the nozzle, and steps in, beckoning you to follow.
As if in a trance, you step out of your shorts and follow.
"W..we're just being... e...efficient..." you stammer.
"Whatever you say, James." She smiles as you step into the shower with her. Her body is amazing despite being older than Jenna. Perhaps a few more jiggly bits, and tits that are larger, but hang a little more. Regardless, she's a sweet piece, and you indulge yourself by soaping up your hands and working them over her pale skin.
"Mmmm... your hands are strong, James. I like that..." she grinds her amazing ass against your cock, which is straight up at attention. "Do you want to do something with that, big guy?"
"Karen... let's just get this shower done with before someone discovers us... and gets the wrong idea."
"Ha...the wrong idea?" she turns, gripping your cock with soapy hands. You shudder with pleasure as she starts to pump your shaft. "You're naked in the shower with your sister-in-law, and I'm stroking your big dick. What's the wrong idea?" Her grin is evil as she continues to work your shaft and head.
"Karen...don't..." you catch your breath as she starts to work faster.
"Don't stop? Don't worry, I won't." She kneels, still pumping as she gets a closer look at your member. "It looks tasty."

"Karen..."
"Oh don't worry, James. We don't have time for all that." She's working faster and faster, really hitting all the right spots.
"Oh...Oh...shit..." You don't know how, but she's got you on the edge already. "I'm..."
"Go ahead, stud." She smiles, opening her mouth and sticking out her toongue.
You can't stop yourself; with a grunt, you shoot a load onto her face and outstretched tongue.
"Hahaha.....mmmm...." she laughs as you rope onto her face, and laps up the cum that hit her tongue with a smile. "Good boy."
"Jesus..." you stumble back, nearly taking a fall until she stands up to steady you.
"Easy, Big James."
"Jesus..." you shake your head. "What did we do...?"
"We?" she giggles. "You didn't do much, Jameson." She's gathering your spunk with a hand, letting it wash from her palm in the spray of water.
"I guess you're right." You can't really argue.
"Everybody needs to blow off a little steam, and it's no fair for my little sister to hog you all to herself." she steps forward to pull your face down onto hers, kissing you lustily.
"Now get out of here and let me finish before someone comes looking for one of us."
You oblige numbly, drying off and dressing before sneaking from the bathroom, once you've determined that no one will happen upon you as you make your exit.

You take in a bowl of cereal as the household rises to a bustle. Riley and Allison rush out quickly without breakfast, heading to the mall, and then the beach. Karen and Jenna grab fruit, yogurt and granola, and head out to meet the realtor. Karen gives you a sly wink as the pass through the front door. Zoe smokes a bowl and heads out to the pool to lounge in the sun.
Jack texts you, asking for the tee time and the location of the course, which you provide, before you and Jared climb each into his own car and head to the golf course yourselves.