Harry wasn't stupid. He'd been an analyst in military intelligence and had a successful career in finance after leaving the army. He was now making a good living as a remote consultant detecting patterns of fraud in international transactions. All of which is to say, he knew what his wife and daughter were doing. Two weeks in a row where Jenny got him revved up and Sally reaped the benefits? Not a coincidence.
The question was, how could he take advantage of the situation? Confronting and accusing them would probably put an end to the scheme, with no real consequences for either of the women. Harry wanted to make them "pay" for deceiving him. He had an idea and did a little online shopping in preparation for the next time they tried to play him.
Harry didn't have to wait long. The next Saturday evening was warm and he was sitting on the screened in back porch enjoying a beer. Jenny came out from the house wearing daisy dukes and what was probably a crop top under a knotted plaid shirt. The shirt was knotted around her waist. She also had a lace choker around her neck and high-heel espadrilles on her feet to accentuate her beautiful legs.
"Hey dad! Can I get your opinion on an outfit for tonight's beach party? I'm thinking this is a good look but I have some options."
"Looks great babe. Nice retro style, like from one of those 70's shows."
"How about If I wear it like this?" Jenny turned her back, shrugged off the shirt and peeled the crop top over her head, exposing her lovely back. She picked up the shirt and put it back on, re-knotting it just below her breasts. Turning around again, She half-unzipped the shorts and folded the waistband over twice, then pulled them up tight to her crotch. Now her entire midriff was exposed from just below her breasts to just above her crotch. A lot of her chest between her breasts was easily visible under the unbuttoned shirt. Her long legs were bare all the way up to her crotch. It was a glorious sight. Jenny had no reason to hide her body; it was toned and lean, with a nice light tan. Her abs were well defined without being masculine, and her tiny waist flared out slightly to slim hips. The peach fuzz that covered her skin was sun-bleached and adorable.
Harry had never restricted Jenny's choice of clothes, with the intention of giving her nothing to rebel against. He had been rewarded with a fashion forward daughter who, while not afraid of showing some skin, didn't dress like a slut. With the adjustments however, her outfit screamed wannabe pornstar ready for a gangbang. His dick responded immediately, even though he knew this was the latest installment of the scheme with her mother.
Harry adopted a playful tone. "I have to say that's something the boys will enjoy. But can you move without falling out of your clothes?"
Jenny was taken aback for a moment, but then in the best improv yes-and tradition she said "Of course I can!" To prove it she did a twirl, then put her hands behind her head, spread her feet wide and moved her hips from side to side. Next she put her hands on her hips and bent over so he could see down her shirt. It wasn't so loose that he could see her nipples, but it was tantalizingly close. Her next pose was a view from the side. She put her right leg far in front of her, bent double so her chest was on her knee, then quickly extended to her full height, flicking her long thick hair back. Finally she did a little jump turn, stuck her ass in his face, put her hands on her knees and twerked for him.
Suddenly Jenny stood up straight as though she'd received an electric shock. "Oh dad, you know I'm just playing around! Now I'm going to get ready for real over at Becky's. See you tomorrow, don't wait up!"
She sprinted off the porch into the yard and over to Becky's house next door. One minute later Sally poked her head around the door. Harry wasn't sure if she'd been watching Jenny's show, waiting for her cue. Probably. He wondered briefly if Sally might be thinking Jenny had gone too far, but brought himself back into the moment.
"Hey darling, can you come up to the bedroom please? I just bought some new lingerie and I want your opinion." Harry was kind of upset that they thought him so clueless. "Sure babe, I'll be right up" he said, keeping his voice normal and even. The bedroom was where the purchases he'd made during the week were stored, ready for Sally's punishment. Harry finished the last of his beer and went inside.