Build-A-Partner: Experiment Tech, Part 11

PART 11

Sabrina wasn’t sure how to answer the question and had to take a moment to mull it over. Her knee-jerk reaction was to say ‘no’, figuring that the main reason that Nick would even suggest tampering with her sexuality would be to indulge in his own perversions. Making his girlfriend interested in girls? It sounded like a pipeline to get Sabrina to agree to a threesome; which was a prospect that she might have been interested in if they managed to rope in another cute guy. She hadn’t had much desire to experiment with the same gender for the simple reason that she wasn’t attracted to women, at least not in the same way she was attracted to men. Sabrina could absolutely appreciate feminine beauty but it didn’t get her hot under the collar the same way, and her experiences with the men that she had had relations with only helped to cement her preferences.

Rationally she knew there had to be exceptions; with different concepts of gender identity and expression out there it was needlessly limiting to say that she was only attracted to cis men, but going off of what she knew about herself and the partners she had taken it was looking more and more like the truth. Was it something she wanted to change about herself? She wouldn’t even be fully cognizant of it happening, and maybe expanding her horizons wouldn’t be a bad thing. With the change to Nick’s psyche she knew that he wouldn’t do anything harmful to her, but the P.A.D. was… unpredictable. It was a risk just letting him hold it, but with his newfound honesty towards her Sabrina figured that she could always be reminded of the changes after the fact and request that he undo them.

Wait, the device could undo the changes it made… right?

The feeling of Nick’s cock rubbing against her thigh brought her attention back to her ‘boyfriend’ - though she was still having trouble seeing him as such - who was looking at her expectantly.

“...Fine,” Sabrina sighed after a few moments. “But I get a turn with it after you’re done turning me into a lesbian.”

“Oh c’mon Sabs, I’m not gonna make you a lesbian,” Nick chuckled. “Think about it, you’ll have twice as many opportunities to enjoy a little eye candy now. Besides, y’know… girl-on-girl is hot.”

Of course her suspicions had been spot on. Guys were so predictable sometimes, but before she could give him any guff Nick was already locking in his choices on the P.A.D. - he was getting pretty quick with it after a little bit of practice. In his horny haste he hadn’t even considered more inclusive orientations, only being reminded of them when they popped up as options on the holo-display. ‘PANSEXUAL’ would cover all the bases, right? He was admittedly uninformed about a lot of this sort of stuff but thankfully the device seemed to detect his ignorance and helped steer Nick towards what he was really looking for.

Modifying Sabrina’s sexuality was, deep down, a means to an end; he wanted his girlfriend to share his taste in women more than anything, and was delighted to discover that the P.A.D. had more detailed sub-options in the ‘SEXUALITY’ category. While pansexuality would remain the broad umbrella under which Sabrina’s attractions existed, he could tweak the particulars and preferences to whatever he wanted. His throbbing dick was on his mind - it almost always was - so it took priority.

Under ‘GENERAL PREFERENCES’ he watched ‘SIZE QUEEN’ pop up and felt a momentary pang of guilt. Was this selfish? Nick could rationalize the decision with a little encouragement from his achingly hard cock; it would be helping their relationship in the long run, and it wasn’t explicitly against Sabrina’s interests. He confirmed the changes, his worries buried under the juvenile fantasy of having a girlfriend that he could ogle pretty ladies with. After the words ‘INPUT SELECTED’ blinked away he felt Sabrina shift against him, her hips moving as she rubbed her flat butt in a slow, grinding circle against his clothed shaft.

Sabrina used to be interested in Nick’s oversized cock aesthetically and, to an extent, ironically. It was fun to play with the equivalent of a real flesh-and-blood dildo, but she hadn’t given him such a ridiculous hammer swinging between his legs because she thought it was hot. It was a funny lewd experiment, at least until this most recent round of changes to her psyche. Now she had made that decision explicitly because it turned her on, and the feeling of Nick’s engorged prick pushing against her backside as it strained against the fabric of his trousers was making her wet. She liked them big, but what Nick didn’t realize is that her size-based obsession didn’t stop with dicks.

Because of his eagerness to enact the changes he didn’t stop to consider that ‘GENERAL PREFERENCES’ could encapsulate a broad category of physical attributes. Sabrina wasn’t just enamored by huge cocks; tits, asses, lips, muscles, anything that she considered attractive - which thanks to her recent pivot away from heterosexuality was a lot - was now far more attractive when it was bigger. Her grinding against Nick’s bulge used to be teasing but now it was needy, thanks in no small part to the show that Flo was giving them with her big, perky boobs.

Nick figured that the changes were a success from the way Sabrina was staring at their coworker, having slipped her thumb between her soft lips as she watched the busty redhead jiggle while she operated the espresso machine. He was totally unaware of his girlfriend’s rapidly shifting sexual history, his alterations compounding with her other compulsions and opening up her experiences far beyond what they used to be.

Her impressive blowjob résumé shifted to a focus towards partners that were exceptionally hung. She still had plenty of casual experience with cocks in the upper side of average, but a lot of the smaller ones disappeared from her memory, replaced by members attached to more feminine and androgynous bodies. Her potential pool of well-endowed sexual companions now included trans and non-binary partners; Sabrina wasn’t picky in the slightest, and if someone was hot and had a fat cock then she would go out of her way to feel it slide past her plush lips and ram down her eager throat.

“How do you feel?” Nick finally asked, his breath hot against Sabrina’s neck.

“Mnh, besides horny?” Sabrina answered around the thumb she was sucking on, eyes never leaving Flo’s top-heavy body.

“What do you think of Flo?” He probed while his free hand ran up along his girlfriend’s bony hip.

“God, her tits look so perfect today,” Sabrina said in a lustful, breathy whine. “I can’t get anything done when both of you are working, mmh.”

Sabrina had attributed her obsession with big boobs to the fact that she considered herself to be woefully under-endowed; in fact, that was her reasoning for all of her size-oriented interests. She had no way of knowing that those feelings were artificially implanted by her ‘boyfriend’, she just knew that she would love to get a chance to wrap her sensitive lips around one of Flo’s nipples. Her insistent grinding against Nick elicited a groan from the boy, and Sabrina could feel her damp panties clinging to her mound underneath her jeans. Any more of this and she would have to begin worrying about a dark spot in the denim giving her away to the customers. Nick found himself in a similar situation, having grabbed Sabrina’s hip for leverage so he could dry-hump his pre-cum drooling cock against her. His overactive nuts were starting to fill his underwear with the clear fluid, but he was far less concerned about the consequences.

“W-Wait,” Sabrina finally said, mustering the willpower to pull her thumb out of her mouth and look back at her hopelessly horny partner. “Before you cum in your boxers…”

She held her hand out, palm flat, staring at the black card Nick still held in his fingers.

“My turn.”