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Introduction:

William wakes up to a new day where his step-daughter is now his obedient sex-bot.
The morning after William had successfully used the Be-Mods on Tamara he got out of bed before both her and her mother. He wanted to make sure the Be-Mods were still working. Yesterday he had their level set at 90% obedience, today he wanted to explore the effects of dropping the levels and how it could shape Tamara's reactions to certain situations. For now though he just wanted to make sure there wouldn't be anything come up unexpectedly. Britney, his 40yo wife and mother of Tamara, slept soundly as she recovered from her hangover, she also usually slept very deeply after having sex, which they did.

He sat as his computer drinking his coffee when he heard a noise of movement, Tamara and Britney were distinctive in the ways they moved so William immediately knew it was Tamara. She walked down the stairs and entered the kitchen, "Good morning Tamara."

"Morning Daddy."

She seemed a little surprised at how quickly that slipped out of her mouth. 

"Did you sleep well?"

"Yes daddy."

"Good girl, you know it's not something to mention to anyone else?"

"Yes daddy, I won't tell anyone."

"Good girl, have some breakfast, I've made coffee if you want some."

"Thank you daddy."

William was satisfied that the Be-Mods were still doing their thing, he decided her would drop the levels to 70% today. He loved her compliance but she was definitely waiting for commands, he wanted her to be still herself but just more maliable to his will. Today was a day to test some limits and of course if needed he could just up the level. He sent the information to the Be-Mods to update the levels, he was in the process of creating an application for his phone so it could be adjusted wherever they were.

As the updates took place he saw Tamara pause in the kitchen, as she "restarted" her body language already looked a lot less robotic, she turned to William, "you want some more coffee daddy?"

The way she said daddy felt more relaxed and real, he smiled, "yes please, thank you! For now you can stop calling me daddy. You don't need to call me anything."

"Sure thing." She smiled at him and got on with her coffee and breakfast. 

"When your mum comes down I want you to be extra nice to her. Make her coffee and breakfast, bring her some Asprin and water. When she's settled, tell her you cleaned your room last night."

"Will do!"

She smiled, seeming to be ok with these ideas. William had barely seen her smile in a friendly way their whole time.

About an hour later William heard movement, Britney was making her way downstairs. She was ginger and looked tired, "morning mom!" Tamara met her mum holding a cup of coffee, Britney looked at her in surprise.

"Morning."

"I've made you some coffee, have a seat, I'll make you breakfast."

"Ok...."

Britney looked at William in confusion, he just shrugged his shoulders. Tamara brought over a glass of water and some Asprin which Britney took, still a bit weirded out. Suddenly Tamara remembered, "oh shit my washing is finished. I'll just hang it out. I'm doing another load if any of you need stuff washed."

Britney looked at her daughter in utter confusion, "ah no I think I'm ok."

Tamara looked at William, "I'm fine too thanks Tamara."

She bounded away happily.

Britney turned to WIlliam, "ok what the fuck is going on!"

William tried not to smile too much, it was amusing seeing how much it weirded his wife her seeing her daughter actually be nice! "What do you mean?"

"What do I mean?! She didn't swear once, she was helpful and considerate, and she's doing her own fucking laundry while offering to do ours. And I walked past her room, it's been tidied. What the actual fuck!!!"

"Ok ok, I can see how it would be weird."

"Yes, it is fucking weird!"

"Look let's just say Tamara and I called a sort of truce. She realised that being hostile wasn't going to help things in the last 6 weeks, and I agreed that I wouldn't be so hard on her. I basically said if she acts like an adult, she'll be treated with respect. We talked about it over pizza."

Britney shook her head, "I'm shocked, genuinely I can't work this out. It's like she's a different person."

"Aren't you glad we're not at each others throats?"

"I mean yeah, of course! But it's just a lot to take in. I think I need to take a shower to wake up and deal with this new reality."

"Sure thing, you go shower. You still going to your managers baby shower today?"

"Yeah that's still happening, can you drop me off and pick me up?"

"Of course!"

Britney got up taing her coffee with her and went upstairs. He chuckled at her reaction, but all the while he was really pleased with Tamara and the way the Be-Mods performed. That said she was almost a little too good, he wanted to see more of her fire and personalilty come through. He adjusted down a further 60%, interested to see the results.

He walked into the laundry where Tamara was pulling the clothes out. She was bent over and her tight ass was sticking up. He came up behind her rubbed her ass cheeks slipping a finger towards her crotch. She stood up and saw him, she didn't protest but she did seem more resistent or uninterested, "my moms upstairs!"

"She's in the shower, she won't be down for 20 minutes!"

He kept rubbing her pussy with one finger while cupping one of her breasts with another. She moaned, almost in protest but mostly being turned on and feeling embarrassed. He slipped a finger under her pants, immediately he felt she was dripping wet.

"You want me don't you?"

"Oh yes daddy!"

"You want me to fuck you?"

"Yes daddy, fuck me!"

He pulled her shorts off her while she pulled off her top getting her naked in seconds, William pulled down his pants and lifted her up onto the washing machine. She was passionately kissing William with her hands gripping his head, while William groped and felt every part of her teen body matching her energy. He couldn't be sure how long his wife would be so he spread Tamara's legs and rubbing his cock he thrusted into her dripping wet pussy. He fucked her hard, holding her hands in the arm, they kissed passionately and as they brought their bodies close together William felt his cock explode inside his step-daughter for the second time in 12hrs! Tamara meanwhile arched her back as she felt her body shake with another orgasm, they grappled each other rubbing each others sweaty bodies. Finally William pulled out of her as he heard the shower switch off upstairs. Tamara put her pyjama shorts on and her top, she used a tissue to dab away any excess cum while William got dressed again.

William observed Tamara, she was a sexy minx and very sexual in this state. He liked it a lot! He decided later today, with Britney away he was going to run some more level tests but for now he left Tamara to finish the laundry.

Britney came downstairs as William passed her going up, he was hopping into the shower after his fun times with Tamara. He didn't want Britney to catch on to his activities. The morning went pretty uneventful after that, Tamara at 60% on her Be-Mods were definitely more herself but more polite and generous. She went back to being more lazy though, she watched TV and chilled on the couch, all the while Britney got herself ready for the baby shower of her manager. It was about 11am that they left with William driving her to her managers house, she said to come pick her up about 4pm. Giving William a good 4 hours with Tamara.

He came back into the house with Tamara relaxing on the couch, she seemed uninterested in William's return home. He went to his phone and computer, finishing the application on his phone that would allow for real-time updating of the levels from his phone. He decided he need to test switching them to 0%, he had to see if the real Tamara was there and her reactions. He sat across from her, "Tamara, I've turned you into a good girl now. But I need to test the technology, I need to see what happens without the Be-Mods being in control."

"Ok Daddy"

They were alone, she had gone back to calling him daddy. Tentatively he pressed the update button to turn her Be-Mods to 0%.

Her eyes when blank for a second before blinking. She looked at him and flared up, "what the fuck! You fucking pervert!!! You put these things on me without my consent, had me acting like a fucking robot, making me make breakfast for mom, sucking your cock, fucking you!!!!"

Tamara got up to lunge at William but he had her Be-Mod setting poised to change back to 50% at the ready, he pressed to update and again she paused as the Be-Mods altered her brain.

As she reset again she shook her head and looked at William, "I'm sorry daddy, I didn't mean that. I don't know why I was so angry."

"Tell me honestly Tamara, why have you been such a bitch to me the whole time I've known you? I tried to treat you well when we first met, but you were always so angry."

"I'm sorry daddy, it was me placing my anger towards my real dad for abandoning me on you. It's not fair, and it's not right that I did that. I'm sorry."

"You were very angry with me then, you called me a pervert. Is that what you really think of me?"

She paused, "you are a pervert, but I've been a vindictive bitch to you. I deserve to be punished, and the truth is that I've had fantasies of you taking me in my bed."

"This is the truth?"

"You know I can't lie to you daddy when I'm under your control. If you tell me to speak the truth, I will speak the truth. I had fantasies that you would come in one night while I'm asleep, you cup your hand over my mouth and slip your finger inside me. You finger me getting me wet, you force your cock in my mouth and force me to deepthroat you. You use my dressing gown draw string to tie my hands behind me, and fuck me from behind. I've cum to this fantasy many times."

"Your a nasty little fucktoy aren't you!"

"Yes daddy, I'm your nasty little fucktoy."

"I have an idea, maybe to make your fantasy more real!"

"Lets do it daddy!"

He took her by the hand and led her upstairs, he took out some hogtie cuffs that he had used with Britney. Tamara was in her bedroom lying on her bed, William came in and gave her a look and a wink. Tamara was already damp seeing that. She lay on her stomach and he put her ankles in the cuffs before adding her wrists in as well, "can you get out of these?" He asked her.

Tamara tried, "no daddy, I'm helpless!"

"Good!" He stood over her and using his phone he reduced her Be-Mods down to 0% again. She paused as they updated, then shook her head as if a fog had been lifted. "Fuck, oh fuck! No, let me go!!! What the fuck are you doing!?"

"You told me Tamara, you told me you fantasised about me taking you by force. You told me you would cum to the fantasy of me creeping into your room and fingering you! Well today I make your fantasies real!"

"What?! No I never wanted this, you fucking creep! This is rape! You can't do this!"

"Shhhhhh babygirl, it's ok. I feel how wet you are, I know you're going to love this!"

"Fuck you!"

"No Tamara, fuck you!" He started to finger fuck Tamara's damp pussy, he had two fingers in her almost immediately. "Oh you naughty little slut, you're so wet! You want this, you know you want this!"

He fingered her with one hand while rubbing her ass cheeks with the other, all Tamara could do was moan in protest.

"Nnnnnnnnnmmmmmm, nooooooo fuck!!!! Oh fuck you bastard!!!'

But already her body had betrayed her, her body squirted hard with William's BDSM molestation of her, she shuddered as she had her biggest orgasm ever. She had thought about this so many times, she hated it on a concious level, but on a subconcious level it was all her daddy issues culminating in a primal desire to be used as a fucktoy.

"AHHHHHHHHHHHHHHH FFFFFFFFUUUUUUUUUCK!!!!!"

As William pulled his dripping wet hand away from her Tamara breathed heavily, she couldn't believe how her body had reacted. She felt so much shame at being treated like a whore, she wanted to fight back, she wanted it to stop, and yet she didn't want it to stop! Suddenly William placed a ball-gag over her mouth, muffling her moans.

"As much as I love hearing your protests, I don't want anyone knocking on the door out of concern."

"Mmmmmmmmmmmmfffffffffff" was all Tamara could respond with, but William had already unclasped her ankles and lifed her ass up so her wet pussy was on show for him. He rubbed his hard cock on her wet pussy feeling how dripping wet she was and grabbing both hips as started fucking her. 

"Oh fuck Tamara, you're a fucking little whore aren't you! Daddy's little fucktoy! This is what you always wanted! I'm giving you exactly what you wanted and I can feel how much you're loving it." As he was thrusting hard into her he spanked her ass leaving hand prints on her, while he grabbed her hair and yanked her towards him. He buttcheeks wobbled as his body bounced off hers.

Tamara couldn't deny her body was loving being treated like this, she felt dirty and was angry at William not only taking advantage using the Be-Mods but learning her dirty secret that she wanted him to fuck her. And yet she shuddered as she felt her body preparing for another orgasm, she moaned in protest against the ball gag.

William meanwhile had increased his pace and knew he was going to unload another dumping of cum into her. He enjoyed this more agressive style of fucking Tamara, he'd done it a couple of times with Britney but not for a while. He grunted and groaned like an animal preparing for his cock to explode, and in a cry of pleasure he yelled, "oh fuck I'm cumming!!!! Take my cum you little slut!!! You wanted daddy's cum well here it comes!!!!"

Tamara sobbed lightly as her body shuddered from another orgasm, feeling William's cum fill her once again. She had never had unprotected sex before and now she'd done it three times with William, it added to her feeling of dirtiness. As William pulled out of his step-daughter he watched her as shake from her orgasm and being fucked so brutally. He moved to her face and pulled her ball gag out, "suck my cock, taste your pussy juices and my cum!"

"Urgh gross, no!"

"Fine, let's see how you are at-"

"Wait! No please don't turn me into that again! Please I'll suck you!"

It was an interesting reaction, again all very important to take note of. But that could wait. "Fine, suck me clean and then we can talk."

She opened her mouth freely to allow William to shove it in her, she sucked her mouth on it using her tongue to lick it clean. Maybe if she did as she was told he might let her stay herself and not the obedient toy he was using before. She swallowed the mixture of his cum and her juices as William pulled out of her. He looked at her with a smile and picked up with her arms still bound behind her back, leaning her against her bedframe. she looked at him and said, "you raped me. I don't care if I told it was my fantasy when I was that mindless drone, I didn't give you my consent."

"Tamara let's drop things a little bit, I couldn't give a fuck about the technicalities of consent and what you think about it all. You have been a disobedient little bitch from the moment I walked through the door, all because you have daddy issues against your bio-daddy who you can never let your emotions out on. It pissed me off, and I don't have any guilt about putting my Be-Mods on you to get you stop being disrespectful. Along the way I realised, you're fucking hot and I enjoy fucking you deeply and filling you with my cum. But the point of these things are to alter behaviour, and for the user to be more obedient. Just then you sucked my cock, begged me to let you suck my cock-"

"So you wouldn't turn me into your slave again!"

"So tell me, why wouldn't I turn this back to 90% effectiveness and have you as my fucking slave?"

Tamara didn't have a response to this, she wasn't in a position to bargain.

William continued, "the whole point of this was I wanted to test parameters. So I will put them on at 25% effectiveness, I want to see how you act with them like that. I've put measures in place to prevent you from blabbing to anyone in case you're thinking of being smart. But if you can be a good girl with them at 25%, I'll let you be you."

Tamara looked at him, "I don't really have a choice in this do I?"

"No, but with you more aware of things maybe you'll think twice about acting like a cunt to anyone. Oh and send a message to Steve, you're breaking up with him."

"What?! You can't-"

"I can't?"

"I mean-please...I really like him!"

"Too bad, I'm not sharing you unless it's my choice. Send the message or I'll make you send it."

Tamara looked defeated, William saw it and was satisfied. 

He pulled out his phone and dialled the Be-Mods up to 25%, she stared blankly for a second before coming back.

"Tamara, how do you feel?"

"Ok I think."

"Are you angry with me? Tell the truth."

"I'm a little annoyed with you, but I'm not going to do anything. You can let me go."

Satisfied, William undid the bindings on her wrists freeing her. "Text Steve now, tell him you need to talk to him."

"Can I have a shower first?" 

"Sure you can shower first, then text him. When you speak to him I'm going to be listening."

"I understand."

Tamara left the room and showered, when she came back he handed her her phone. "Text him."

Tamara sent a message to Steve asking to chat, he immediately called and William watched as she broke up with him. He could tell Tamara didn't want to do it, a tear even rolled down her cheek, but she did as she was instructed.

"I'm going to watch you at this level, and don't think you sex fun is over. You're going to give me a blow-job every single day, if you don't I'll put you right back up to the higher level and you can be my fuckpet again."

"Yes daddy, I understand."

William could tell she did, this testing day had proved a great success and provided plenty of data William needed to write about. There were more limits he wanted to explore, but for his next day at work he decided he needed Tamara there as evidence.

************

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