His father.

“Hey Otto, your mom’s almost got dinner ready.” George’s gruff and unkind voice said from the other side of the door. “Put your damn pants on and come eat.”

Strangely, but not really, Otto didn’t feel the same frustration that he normally would have in a case like the one he found himself in with his dad nearby. Instead of shamefully hunched over his computer watching or reading smut while jerking his pathetic cock as his father called through the door, the young man was instead standing around looking better than he ever had in his life this time, and with a new needy monster between his legs, to boot. Otto wordlessly turned and began towards his computer as he heard his heavy-set father’s footsteps trailing off down the hall, not bothering to wait for a response from his disappointment of a son.

Sitting down at this desk and his prick harder than ever, Otto clicked out of his own profile and took a look at the people nearby that the program was able to detect. According to the list, only those in his house were in range of the program’s direct influence, and his father was at the top of the list. As he selected the man’s name, watching as the screen shifted and was now displaying his deadbeat dad walking down the stairs on his way towards the kitchen.

“Alright dad, I think it's time we change up the dynamics around here.” Otto snickered to himself as he began to type into Master PC’s Command Center. “How about we make you a little bit more fun to be around?”

[George Perchins will turn around and come back to his son’s room, then he will open the door and walk inside.]

Just as his father was about to walk down the step of the staircase, Otto watched as George’s brow furrowed in confusion on his laptop’s screen. He then turned around and began back up the way he came, to his visible dismay. The young man couldn’t help but relish his father’s look of helplessness as his body likely felt like it was moving on its own.

Otto was aware of the ‘Retroactive Changes’ setting used in the many stories he’s read, and figured that this wouldn’t be the worst time to turn it on. In the upper-left corner of the screen, there was a tiny box with that exact label next to it, and he checked it off with a click. Now, anything that Otto did with Master PC would go unnoticed by everyone except himself.

And because George’s face didn’t change after that, Otto went right back to the Command Center.

[George believes that he is going up to my room to make sure I’m awake, and he will not notice anything different about my appearance, and that goes for everyone else in the house. Also, nobody will ever think that anything I could possibly do is strange or suspicious. George will actually become very shamelessly aroused as soon as he sees me, and he will do whatever I say without a second thought or any moral consideration for what the task is.]

Otto pressed the Enter key as soon as the door to his room clicked open, and he watched his father’s expression instantly shift from one of worry to boredom as soon as it came into view. He turned in his chair to face George as he entered, and both of them couldn’t help but smile in their own ways when eye contact was made between the two. His father’s eyes didn’t linger on the young man’s own, quickly wandering lower and soaking in the sight of his twink son and the boy’s absolutely raging monster of a cock as he casually stroked it.

Otto did the same, drinking in the man’s tall figure as he stood there in a pair of jeans and a white T-shirt that was tucked into his belted waistline. The round beer-belly jutting out from his midsection only added to the size of the burly six-foot-tall man, whose barrel chest and tree-trunk-like legs that came from years of hard labor stretched his well-fitting clothes to their maximum. Not just that, but the notable bulge in the front of those jeans looked a hell of a lot juicier that it usually did, Otto thought to himself with excitement.

“Hey Otto, how’s it hangin’?” George asked his son with a hungry look in his eyes, openly adjusting his package as his meaty cock swelled up within. “I see you haven’t been skipping leg day, hah.”

Otto bit down on his bottom lip and grinned wide, his cock reacting to his dad’s predatory gaze with intrigue.

“It’s hanging pretty low these days, actually.” He chuckled. “Hey, do me a favor and take off your clothes, and then sit down on my bed.

“Hm?” George mumbled, glancing towards Otto’s unkempt bed for the briefest of moments before his feet carried him over there. “Oh, sure.”

The large man untucked his shirt and pulled it off, revealing his hairy torso before he went and undid his belt. After that, he unbuttoned and unzipped his pants, pulling both them and his tight white underwear off in one motion. When his thick and meaty nine-inch cock flopped out and continued to fill up, it took every bit of willpower Otto possessed not to walk over and dive down onto the man’s fat shaft with his salivating mouth.

Before that happens though, first thing’s first, he thought.

“So, uh, yeah. Dinner’s just about ready.” George said with a grunt as he plopped himself down on his son’s bed, causing its wooden foundation to creek under his weight. One of the man’s large and very beefy hands reached down and grabbed a hold of his cock, slowly stroking it to full mast as Otto turned to his computer and opened up his father’s stats. “But I think everyone can wait up for us if you’ve got something else you wanna’ do.”

“I do, actually.” Otto said, watching on-screen as his dad’s thick body hair vanished completely from his large body and belly. “But they might be waiting all night if that’s the case.”

“Oh, is that right?”

“You don’t know the half of it.” Otto chuckled, then increased his father’s sexual stamina as high as it would go before removing any sense of orgasmic recovery time, making sure that he could quite literally go all night, if they wanted to. To emphasize this, he also maximized George’s semen production and the size of his balls, which caused the man to shiver and begin panting as a constant stream of clear goo began to ooze from the tip of his dark and overly-thick cock while his balls swelled up to the size of, well, to Otto it looked like his very tight scrotum was now a squishy basketball with a defined crease across the center of it.

“Could you give me an idea, maybe?” George grunted, the tone of his deep voice becoming less patient and ever-more wanting as his moving hand was soon completely slick with precum. “Because I’m starting to think that you want to do something that your mother might kill me for.”

“Oh, don’t worry about her. I’ll take care of it.” Otto said, his voice low and serious, but hungry, just like that of George’s expression.

“Huh?” George laughed, completely unaware that his rough skin and farmer's tan were changing altogether, becoming as smooth as could be while also shifting into an even and deep dark ebony color. “What are you up to?”

“Don’t worry about it.” Otto sighed, rolling his eyes. Right after that, the young twink paused, stood up, kicked the chair away from him, and then leaned over his desk with an arched back. His toned round ass was sticking straight out in his father’s direction, giving him a clear view of Otto’s squeaky-clean asshole and giant dick as it dangled between his athletic thighs and knees. “In fact, make yourself useful and eat my ass. I’m starting to realize that I’ve got some more work to do before we get down to the fun stuff, and you’re stupid voice is getting on my nerves.”

George cocked his head to the side, never having imagined those words coming out of his son’s mouth.

Wait a minute, the burly black father thought to himself as his large hands scratched at his shiny bald head. He wasn’t gay, was he? George couldn’t deny that he was hornier than he’d ever been in his entire life for some strange reason, but because of that, a large part of him didn’t really care about any of his previous morals towards being a straight man and a father.

Otto’s ass just looked delicious, gently swaying from side to side as he played around with his computer, and his son’s sudden offer wasn’t something that the man planned on passing up. Before either of them knew it, George had stood up and made his way to Otto. The large man dropped down to his knees while his mouth and tongue dove down onto his son’s hairless asshole, reaching up to stroke Otto’s big dick and himself at the same time.

“Ooh, fuck…” Otto moaned and shivered, his pretty face making an awkwardly adorable expression of nervous lust. “D-Damn dad, you really know how to g-get in there, huh?”

George just grunted and went to town on Otto’s tight ass, the young twink doing his best to focus on the screen in front of him as he switched the target location of the ethereal camera view towards the kitchen, where both his immediate and extended family were scattered around and chatting about things.

However, Otto didn’t want to miss out on any of the fun downstairs himself, and he still wanted to alter them in the same way that he had just turned his father into a lust-driven breeding-machine as soon as possible, so a juicy idea that suddenly popped into his head seemed like a good way to kill two birds with one reality-altering program.

[Frank Smith’s mind and memories are an exact copy of my own, the ‘Retroactive Changes’ setting no longer affects him, and he now has a mobile copy of Master PC on his unlocked phone, as well.]