Yes

He looked into Margaery’s adoring, seductive gaze and saw all the power and pleasure he could ever want. He felt like more than a king when he fucked her and Loras; he felt like a god being worshipped. The power was intoxicating and before he knew it, he found himself down the rabbit hole and agreeing to the plan. He took his pleasure from his wife for the rest of the morning, stopping only when she finally could take no more. Jon left her in a sweaty, cum-filled state as he ventured out into the castle to do his duties.

It was another three days before Loras returned to the Capitol, meeting Jon in his chambers late in the Afternoon. The Knight of Flowers brought with him a small chest and with a grunt he placed it on Jon’s desk, a proud smile on his face.

“I paid the witch enough to buy all of her stock,” he breathed, opening the chest to reveal dozens of vials filled with the different coloured concoctions that induced lust, fertility and vigor. “There are two more chests within my chambers, all waiting for you, My King.”

Jon hummed in approval, looking over the many different vials and taking care to count them all. As he inspected the haul, The Knight of Flowers undid Jon’s breeches and ran his tongue up Jon’s undershaft, sending electric jolts of pleasure through the Targaryen’s body.

Just as suddenly as he’d swallowed Jon’s cock, Loras slipped it free from his mouth with a loud pop. Before Jon could complain, Loras began attacking his balls, licking and sucking, making little breathy noises as he took a ball in his mouth and rolled it inside, bathing it with his tongue.

Jon had his fun with the Knight for a time, letting the Tyrell lavish his cock, but eventually they were interrupted by Margaery. His wife watched the scene unfold for a moment with a smug sense of victory before reminding Jon that he was due to have drinks with Aegon and that he must wrap up his attentions. He gestured for Margaery to join her brother, and the two hungrily competed for his cock, licking and sucking every inch of it with heated madness. It was his wife who won out in the end, clasping her lips around his cock and sucking down every drop of his seed. He grinned at the two Tyrells laying in a mess, walked over to his desk and took a few vials to fill his pocket before leaving the room.

He found Aegon in his solar, wine glasses waiting for them. They sat in comfort, mostly talking about gossip and courtly scandal, but once they had moved to their third cup of wine each, Jon got to his feet and went about refilling their cups.

“Your ascension to the throne is in another two days,” Jon said casually with his back to Aegon, filling his cup, and then toying with a vial in his hand, “are you feeling ready for it?”

“Ready as I’ll ever be I suppose.”

Jon hesitated only for a moment, but his mind quickly thought of Margaery and he emptied the vial into Aegon’s wine. He turned around and handed the cup back to his brother, sitting back down and considering the red liquid.

“Are you sure you’re not having any doubts?” He asked mildly, “it’s not an easy task that you’ll undertake.”

Aegon took a thoughtful drink, “It will be a challenge, but what in life isn’t?”

“True enough,” Jon agreed, raising his cup in toast, “to a strong rule.”

They continued on for almost an hour and Jon found himself getting up to refill their cups one more time. He did so feeling tired and drunk, and lay back with his eyes closed for a moment as he worked at a headache. He was so deep in his thoughts he didn’t notice anything out of the ordinary until suddenly his cock was free, and engulfed in something wet and warm.

Eyes flying open wide, Jon looked down to find his brother kneeling between his thighs. Aegon was hollowing his cheeks as he took that cock in his mouth expertly.

Jon’s hands found his brothers silky silver curls and he caressed his hair, spreading his thighs wider so Aegon could get closer and get more of his cock down his throat.

The crown prince pulled his mouth free and rubbed his cheek against his brother’s cock. “I need this cock, there is nothing I need more than this cock,” He ran his tongue against the undershaft once more, his gaze never leaving his brother’s hungry eyes. “You like how wet and warm my mouth is, don’t you, Jon?”

“I do,” Jon gasped as Aegon began to suck his way up the length of his brother’s cock. “And I’d be willing to make use of it every day...if you were to renounce the throne.”

Aegon paused momentarily, looking at Jon curiously before his senses were clouded once again and he gave the head of Jon’s cock a soft kiss. “Of course, you should be the king...my king.”

The decision to renounce his claim was met with utter shock from all involved, but once Jon made a song and dance of reluctantly taking the Iron Throne, a sense of normality returned. Or as normal as they could get.

A week later Jon sat the Iron Throne, his naked wife bouncing on his cock as his steadily growing harem waited for him, all naked and all looking at him with utter adoration. He reached his peak and released in his wife with a triumphant groan. It was good to be king.