Restrain her!

"Next, we must restrain the subject!" Kelly declares, in what she must think is an "official" sounding voice. "To the lab!" She turns and marches down the hall, leaving you to gather Nora in your arms and follow behind her. You arrive in Kelly's room and drop your wife onto her bed. Kelly slides under her bed and retrieves some lengths of nylon rope.

"Why do you have that?"

"It was part of my homework. I spent a lot of time tied up under my clothes last week. I got pretty good at it!" She replies proudly. "I never thought I'd get to tie up Mommy, though." She moves quickly.

Kelly hops onto the bed at Nora's feet. "Grab Mommy and push her so she's sitting up." You take a seat on the edge of the bed and do as instructed.

"Good," she approves. She begins wrapping a length of rope around her left wrist and ankle. She winds it around several times before ending in a tight knot. She gives it a hard tug to test its strength. Satisfied, she repeats the process for her other wrist and ankle. Your wife is now folded over, legs spread wide and bound wrist to ankle. She is totally exposed and ****.

"Alright, Daddy, you can let her go." You do and Kelly lunges at her, knocking Nora onto her back. Kelly grabs Nora's breasts in both hands and jiggles them together. "Ngh. Mommy's titties feel so nice. So full." Her eyes are glued to their shaking forms, transfixed. Yours are fixed to the pair of asses lined up in front of you. Your daughter's firm teen cheeks on top of your wife's looser round globes. You know she felt self conscious about the junk in her trunk but you still gave it a little slap from time to time when no one else was around. The temptation to mount them both then and there is incredible, but you resist it.

She finally snaps out of it. "No time for that! She still isn't ready. Mommy could still try to wiggle her fat ass out of here." She grabs more rope and ties it around one wrist-ankle pair. She ties the other end around her bed frame and repeats the process on the other side. "There! Mommy's going nowhere now." She claps her hands together, clearly pleased with her handy work. You admit that it is a beautiful sight, you wife her legs spread, asshole and pussy in the air completely defenseless.

"Whoopsie, I almost forgot." Kelly reaches under her bed again and pulls out a small trunk. She flips the lid open and reveals sex toys of every sort: dildos and vibrators, butt plugs, floggers, and that's just what you recognize from porn. She snatches up a ball gag and leaps back onto the bed, straddling her mother. She wedges the gag between you wife's jaws before pulling the strap tight. You notice she rocks her hips subtly grinding herself against your wife's belly while she closes the clasp.

"There we go! Mommy might not see how much fun life as a slut can be. We don't want the neighbors to hear anything."

"Good thinking. You're pretty smart, for a daddy-fucking little bitch." You are starting to really get in the spirit of things.

"Thank you, Daddy." Your compliment clearly touched her. She gives her pussy another slow grind against Nora's tummy before returning to her senses. "Now her treatment can really begin!"