Control Yourself.

As easy as it would be to use the interaction you just had, not to mention the sights you took in, to your advantage here, you need to tamp down your libido a little. Things have the potential to spin way out of control here. You studiously wash yourself, ignoring your boner until it shrinks away, with a few bobs here and there as if to promise you that it's not done demanding satisfaction.
{if RileyDaddyFan = 1
}If Allison knows about Riley's little fetish, {if RileySexLvl > 1} then you and Riley need to be extra careful. {else
} than there's a chance that her little obsession could come to Jenna's attention somehow, and then all three of you are headed for some uncomfortable conversations. {endif
}{else
}Your still a little rocked by Allison's revelation. Your own daughter...using you as a fantasy to masturbate? It's not exactly something new. Freud called it the "Electra complex." Young girls unconsciously compete with their mothers and measure themselves against them, sexually and in other ways. Though taking it as far as writing your name on a dildo is certainly abnormal. You'll have to think on what to do about this information.{endif
} You finish up, and you trot downstairs in clean shorts and a plain t shirt, scrubbing your hair with a towel when the sisters walk through the front door, still talking excitedly about what houses they saw today.
"Hello, baby..." Jenna smiles, giving you a kiss. You try not to look guilty as you look from her to Karen.
"How was your day, girls?"
"It was great. We saw three houses. I really want her to go for...." you let the story of their real estate adventures wash over you.
"...Jack?" you realize you weren't listening, but you think you know the question.
"Oh, he wanted to hit the back nine, and I was tired, so he'll probably be a little..." as you're covering for her, the front door opens, admitting Jack. He looks...sleepy.
"Hey, Jack. How was the back nine?" You hope he takes the cue.
"Oh..it was fine, but I'm beat." He greets his wife, who appears stiff in her affection towards him. "I'm going to shower and take a nap."
"We're going to dinner tonight at a fancy French restaurant, honey." Karen says.
"Sounds great! Somebody wake me when it's time for that..." he climbs the stairs.
The rest of the afternoon and evening passes uneventfully. Riley and Allison are planning to make tacos. Jared hasn't come home yet, but you guess he's working out the details of his upcoming move with his new prospective roommate.
You made reservations at Chat Noir this morning, setting them for 6:45 PM, so at 5:30, you shave, get dressed in a nice pair of slacks, and a deep blue shortsleeve button up shirt. Jenna brushes out her hair and puts on makeup, wearing sheer knee high stockings under a tight dress, with a garter thong and no bra as far as you can tell. Your mouth waters as you watch her dress, and she winks at you as she clasps her nylons.

You head downstairs where Jack and Karen are waiting. The smell of tacos lingers in the air, and the girls are eating by the poolside. Karen's wearing almost the exact same outfit as Jenna, though she's clearly wearing a bustier under her dress.
"You guys ready?"
"Abso-fucking-lutely, Jameson!" Karen pronounces with gusto. Jack looks a little sleepy. Probably still whipped from his encounter today.
Jenna comes down, and the four of you head out, taking an Uber so that you don't have to worry about driving home.