Actually, that raises even more quandaries...

A white hand waved in front of Isaac's face.

"Hello? Equestria to Isaac! Are you alright?" Rarity asked, a tinge of concern in her voice as her big sapphire eyes got up close to his.

It was then that Isaac realized he'd basically spaced out for the last few minutes.

"Um, yeah! I, um..." Isaac held the side of his head and trailed off, not really able to come up with a convincing, disarming lie in that moment. Even with a fantastically sexy anthropomorphic unicorn rubbing her big, ultra-soft breasts against him and stroking his huge man-meat, his head had just been full of static for several solid minutes straight, barely even registering the pleasure in his body.

Why? For lots of reasons that fell into two main categories: The complexity and pressure was climbing on this whole Harem Master thing, and he'd just rather viciously rewritten Rarity's entire personality and his sense of morality had to contend with that.

Unaware of the contents of Isaac's mental struggles, Rarity pouted and gave him a quick kiss on the forehead before running a delicate hand through his shaggy hair. "Was it something I said? Did I kill the mood? Would you prefer something else?"

"N-No...!" Isaac was quick to protest, not wanting her to stop her lovely ministrations, even if his attention was entirely elsewhere at the moment.

"Well then, please, tell me what I can do for you. Do you need to talk? Do you need a break? Please, be brutally honest with me. I know I've put a lot of pressure on you, showing you the depths of my passion towards being your loving, willing, eager helper, whether dominant or submissive... but if that's not working for you, I promise I won't be offended. Your comfort as our Harem Master is far, _far _more important than my selfish passions, by leaps and bounds!"

Isaac took a deep breath and let out a sigh. Tempting as it was to talk honestly about his problems, he couldn't. It was such a common trope in mind-control and reality-warping fiction that one girl would become the confidant, the one who was in on the secret, encouraging and helping the protagonist to go further. But that was often a trap, often leading to usurpation or damsels in distress or loved ones being used as leverage. With the level of power involved, the stakes were simply too high not to keep secrets. Some things he was just going to have to take to the grave.

That said, he could probably talk about a few things that were bothering him that didn't have to do with how he'd recklessly warped reality with the Root of Honesty...

Isaac leaned back against the admittedly comfy cushions of Rarity's red velvet chaise lounge, his body slumping like he'd been holding himself up with crutches. "Yeah, maybe I should talk things out..."

Rarity gave him a genuine smile, her horn lighting up as she levitated one of the spare cushions into the air. "Tell you what, my dear Master. How about we take this really, really slow for a change? Just nice and cozy, no pressure, no rush. And you just use me as a soundboard for all the things that are troubling you while I give you the most luxurious treatment I can offer!" She set down the cushion on the floor in front of Isaac's overgrown human cock and knelt right there, letting the swollen head of his cock nestle atop her breasts while her plush, full lips gently kissed and sucked on the tip.

It was a really good idea, as it turned out. Isaac shuddered as the slow pace pulled him back from the brink of overstimulation, allowing him to savor the gentle touches of Rarity's manicured fingers and the wet warmth of her lips and tongue and the soft maternal comfort of her enormous breasts beneath his crown. It also allowed him to actually think through his problems a little bit.

"I think... this Harem Master stuff is starting to get to me," Isaac finally admitted, though he left out the part where some of his frustration came from the fact that he'd done this to himself. "And I think ultimately it comes from me being torn between two desires."

"Mm-hmmf," Rarity acknowledged, her lips stuffed with the tip of Isaac's cock as it drooled precum onto her tongue.

He lifted up a hand to one side like he was holding something. "On the one hand, I love all this worship. I love potentially having an entire species - maybe even multiple species - all devoted to loving and serving me. There's a big greedy part of me that wants all of that every day, just by default."

Rarity popped her plush, painted lips off his cock and grinned. "As you should, Master! And it's what we all want to give you, too. It's what we've all waited all our lives to do!" She then resumed gently stroking his cock, smothering the head between her ample, torso-covering tits and letting her hands roam down and up the shaft within the full reach of her arms.

Isaac then raised his other hand. "But on the other hand... that's a lot of pressure. It basically sounds like I sit on a throne and take callers all day, or I end up embroiled in politics and everything becomes about nation-building, or eventually some people are going to be very cross that I haven't gotten around to fucking them because we're talking about a harem of millions if not billions and I am simply one man with not nearly enough hours in the day."

The fashionista gave him another cute, endearing, slightly condescending pout. "Ohhh, dearie me, you've got such a big heart, Master! I'm sure somepony's told you already, but simply being owned by our Master is more than good enough to get us through the day. We all know that our odds of actually meeting our Master our low, but the idea fills us with satisfaction and bliss anyway! Nopony even wants to rush you down..." She paused. "Well, except perhaps Rainbow Dash."

"I haven't even gotten to the other desire I'm torn between," Isaac said, looking up at the ceiling. "On the one hand, I like the privilege, the status, the worship, going up to the palace and fucking Princesses... but on the other hand, I like just... this. Walking around town, fucking whoever catches my eye. Taking it totally casually, cozy, like this, until I get tired and snuggle up to the nearest curvy pony. But..." Isaac sighed again, his chest wound up with stress. "The further I get into this Harem Master thing, the more it feels like I can't have it both ways, because I'm getting loaded up with so much status that it fundamentally warps every interaction, bringing out everyone's passion and desperation and manic bliss. And it turns out I'm not doing well under all that pressure."

Rarity planted one more kiss on the head of his cock, then looked up at Isaac. "I've heard that Princess Celestia sometimes struggles with similar feelings, of never being able to have a normal interaction with anypony. Personally, I love that level of status and celebrity, I thrive under that pressure - when I'm in Canterlot, I just drink it up like water! But..." She gave his giant rod a petting stroke. "I'm me, and you're you. And it sounds like you've had a lot of bad experiences under the spotlight. Yet you've also been starved for affection, making you want to gorge on it until you feel sick, like I might devour a tub of ice cream on a really bad day." She allowed herself a small self-deprecating chuckle that made her massive breasts bounce against Isaac's member.

Isaac took another, deeper breath. "...Damn if that isn't it. But I'm not sure what to do about it all."

"Hmmm... Do you want my opinion?"

"Heh, I can't say no to the mare that's treating my cock so well!"

Rarity grinned, and gave his cockhead a quick squeeze between her breasts using her elbows. "Smart colt! Well, if you ask me, YOU'RE the Harem Master, or at least the candidate. That means you have your own role to play in deciding what that means. Sure, we have our ideas, our wants, our expectations, but ultimately, we are your submissive harem slaves, and you are our owner. We like a passive, humble, understanding Harem Master, like you said, but! You have the power to put your foot down, to set the rules of engagement. And we want you to!"

Isaac raised an eyebrow. "You..." He almost echoed her last statement as a question, so he restructured his thoughts. "What does that mean?"

The seamstress took a moment to lower the tip of his cock between her thighs and rub her swollen, puffy pony pussy against the head, quietly moaning as she leaked hot juices onto his skin. "Ohhh~... I-It means... if you want to live the life of a King on his throne, just say it and it will be so! But if your definition of Harem Master means being a wandering sex god who fucks random strangers on his travels across the land, then you can say it and make it so, and we'll support you, ah! If you want to play King Sunday through Tuesday and wander around the rest of the week, it is within your power and authority! You CAN have it - ah! - both ways!" She pulled back, removing Isaac's cockhead from between her legs and licking her own sweet pony juices off his head and shaft.

Isaac shuddered at this change of pace and thinking, groaning in lust. "You mean..." He paused, knowing that he was about to trigger the Root, then forged ahead anyway. "Every creature intuitively recognizes that the Harem Master has the right to decide what his roles and duties really are, and all the members of his harem will fully support whatever decisions he makes?"

Rarity gave his cock a hard, deep suck, then popped her lips off again and smiled. "Exactly! I'd say it's a bit of a recent development in Harem **** philosophy, risen from how many candidates we've tried and lost, so not everypony will be expecting you to change what being the Harem Master really means right away. But if you explain the reasoning, I have no doubt that all your lovely servants will agree wholeheartedly. You're a wonderful, caring, thoughtful Master, and I am already honored to be here, being your humble cock-stroker while you ponder the big questions. Don't doubt that for a second."

That made Isaac chuckle a bit. Hearing Rarity of all ponies say such a casually lewd thing so passionately and lovingly... You wouldn't think there'd be 'the little things' to appreciate on a reality-warping bender like this, but here they were.

And strangely, it had all helped. There had been a big block in Isaac's way, if not a full cave-in, and talking through it had helped clear enough of it away that Isaac could conceivably continue.

He now recognized that it was possible to gorge on too much of a power trip, too much worship at once, too much power and responsibility at once, and that his mind and body and heart still required him to pace himself. So, pace himself he would. It was time to take it slow, enjoy himself for a while. After all, every creature on the planet was waiting so patiently for him to fuck them - he had all the time in the world. And when his appetite to go hard and fast returned, he'd plow his way through a whole army of sluts.