Hold up

"Wait a minute...." Xander blinked. Something he hadn't thought of occurred to him.

"Hold up..." he looked down at his crotch and contemplated what he'd just done to himself. He'd used this... magic, maybe, computer program and made his cock bigger. He'd made his unaroused cock bigger, his flaccid state was now a foot long and half a foot around. Well then how big did he get when he got an erection? Too big. That had to be freakishly large.

Part of his mind, the stupid man part of it, immediately piped up and argued that there was no such thing as too big. Xander canted his head to the side as he considered, then shook his head. Sideshow attraction was clearly too big. On the other hand, the stupid part of his mind spoke up, bigger was better.

"Oy." Xander palmed his forehead. What he needed was a second opinion, an unbiased, no stupid man influenced, female type opinion. So he needed to show his raging erection to a woman and get an honest reaction. Xander gripped his forehead tighter, "Yeah, that's not going to happen."

After being dumped by Cordelia and having what few secrets he'd confided in her being blabbed all over the school in petty **** he was already the laughing stock of the school. he didn't need to add to that hell by revealing that he had an elephantine sized schlong and getting branded a freakshow. Letting his hand fall away from his head Xander found his eyes focusing on the computer screen in front of him. The computer screen showing him the magic computer program, Master P.C. The program that could do anything.

Maybe.

This was the first thing he'd used it to do. He really didn't know what all Master P.C. could do. The tutorial said anything, basically, but what if there was a 'no take backs' clause. He hadn't seen anything about a redo button. What if Master P.C. couldn't change his dick back? Was he going to be stuck with this gargantuan thing hanging off of him forever?

"Fuck." Xander grimaced. He was going to have to use Master P.C. to fix this and hope it could fix it. And hope he fixed it right the first time because it only just now occurred to him that he had no idea what was powering Master P.C. He assumed magic and what little he knew of magic was that magical power was a finite thing. You only got so much and then it ran out. Xander was pretty sure he'd heard Giles, Mr. Magical know it all, say something like that.

So how was he going to fix this without wasting what had already happened?

First he needed to find out how big he got when he got an erection. Second determine to his own satisfaction if it was too big. Third get a female opinion on whether or not it was too big. Fourth fix the situation if it needed fixing. All while using the Master P.C. as sparingly as possible just in case it ran out of magic.

So how was he going to do all that?

Xander's rather panicked musings were cut short when he recalled that the Master P.C. could make changes retroactive. He could edit the past. And he just so happened to have had the pleasure of losing his virginity last week. And you didn't really get more honest and open the Faith, she told it like it was, right? So if he was too BIG she'd certainly say something. so all he had to do was make his growth happen before last week, before he had sex with Faith.

02- Xander's penis grew to it's current size the day before he first had sex with Faith Lehane.

Xander spaced out for a second as things got weird. He couldn't help but go spacey as time rewound and reworked itself and left him with two sets of memory. The way things had happened before Master P.C. and the way things had happened after he'd used Master P.C.

And... And he was pretty sure he was a freak.

His erection was almost twenty inches long and ten inches around. He had also unanticipated exactly how much of a wild child Faith was. As despite this new monstrous size of his dick she'd still fucked him. Or... well.. tried to. It hadn't exactly been like it was the first time where Faith rode him like Deborah Winger rode the mechanical bull in Urban Cowboy. This time she'd gotten about a third of his dick inside and then had to stop, because apparently hitting the back wall of your uterus was painful. She'd hadn't done any of the same riding and grinding; instead Faith had used some kegel exercises while rubbing her clit until she'd orgasmed.

As for him? Xander didn't even get a chance to finish. It had felt good. But also deeply frustrating. He'd been inside of her but Faith was in charge and Faith wasn't doing anything but holding him inside of her. No in and out, no friction, no motion to the ocean... just Faith occasionally squeezing him with her kegels while she masturbated. He didn't even get a chance to crank one out and jerk off as Faith threw him out almost immediately after she got hers.

Still, the moment that Faith first caught sight of his hard on? practically priceless. The widening eyes, taking a step back, stifled gasp had been something of an ego boost.

On the other hand the fact that he didn't get to cum and he hadn't been able to make Faith cum because he was too damn big to fit in her was something of a problem.

So how was he to go about this that would allow him to keep the presentation aspect of his size while not impacting the performance aspect of his size.

03- Xander's penis has, and has always had, the ability to perfectly fit inside of his sexual partner despite it's size for maximum sexual enjoyment; allowing for Xander and his sexual partner to have multi-orgasmic sexual encounters.

Despite having experienced it before Xander was still a little spacey as the world changed around him as the past rewrote itself. He could remember the original timeline, the first rewrite and now he knew what happened the second time through. And it was...

It was damn sexy. Faith's reaction was still the same only this time instead of being stopped by the limits of their biology they were able to have sex more like the first time line where Faith rode him like the mechanical bull from Urban Cowboy. All the while she let out little whines and yelps as she had multiple orgasms while riding him to his own multi-orgasmic release, where upon they'd both had an explosive finale, where Faith ended up squirting as he'd unloaded into her. Rendering Faith a sticky sweaty mewling shuddering mess that just lay atop him while she caught her breath and made her eyes uncross.

That... that was pretty damn close to perfect.

She'd still thrown him out. But she'd been much nicer about it. She'd let him get a quick shower and get dressed before she'd shown him the door. So that was better than the first time. And she was giving him a pretty sexy smile when she ushered him out the door. Which didn't really mean anything other than it had been better than to original timeline where she'd avoided eye contact and pushed his clothes into his hands and then shoved him out the door.

And maybe he was imagining things but this past week he thought he'd caught Buffy looking at him funny in this new time line. Buffy's gaze seemed to be lingering on his groin. It was possible Faith might have shared a few titillating tidbits with Buffy of what them having sex was like. The one time he'd run into Faith at the school library while the whole Scooby gang was there he hadn't been able to talk to her about what had happened between them. But he had caught her staring at him and smiling a small smile and maybe sighing wistfully. Okay, maybe she'd been more focused on his groin then on him but still, it was nice to be wanted even if it was only because of his dick.

Putting his Buffy, Faith, Slayer fixation out of his mind Xander looked at Master P.C. and considered what he'd learned from this. And what he'd learned was that he had to think thru his decisions and be specific in what he wrote down.

He could do that.

So what was his next move?