"Mmph, Daddy…" moaned Princess Alita, firstborn of the royal line of Mondaria, as she felt the thick cock stirring up her regal cunt begin to twitch. Thankfully, it didn't belong to her actual father - the king was seeing to business in his audience chamber as usual - but more worryingly, it also did not belong to the man she'd just found out she was getting engaged to.

Luscious yellow dress bunched up around her waist, the princess was bent over a desk in her private study, her cute round ass on display as a tall, strong man in a royal guard's uniform pounded his burly cock into her sopping wet slit. Sir Alec had always been a pleasant, obliging attendant, but of late she had been calling on him to do more to her body than just guard it. Over six feet tall and broadly built, there was a power and dynamism to his movements that belied his gentle, cultured demeanour.

"Harder!" Alita demanded, her soft lips curling into a fierce grimace as she thought back on the day's depressing events. "Don't be gentle today! Rut me like a common fucking whore, Daddy!" she whined, slamming her hips back eagerly to meet his thrusts.

Obligingly, her loyal knight reached forward, winding the thick fingers of one strong, calloused hand through her silky blonde curls. Perfectly primped and treated with products that cost more than even a knight of his calibre would see in a year, he nevertheless showed no hesitation in gripping a handful of her hair by the base, using it to push her flat onto the desk as he continued railing her, eliciting desperate, whorish moans that were only half-muffled as her face was smushed into the dark oak. The edge of the desk caught the neckline of her dress, leaving her generous breasts to bounce free, pressed equally hard against the desk.

"Fuck! Ohhhh, fuuuuuuck Daddy!" she cried, a manic grin crossing her face as she felt her favourite guard use her recklessly. His hand twisted in her hair, his thick cock rampaging inside her, the way her whole body slammed forwards with each powerful thrust… she could not give this up to marry some effete foreign prince.

Still, she craved more. "Spank me, Daddy!" she begged, her voice growing more and more unsteady as she built towards what was going to be an agonisingly powerful orgasm. "Please! Mmfuck… don't be so gentle with me!"

"You sure, Princess?" There was an element of hesitation in his gruff voice, even as he continued splitting her in two with powerful thrusts of his fat cock.

"Yes, Daddy!" Alita panted, feeling her slippery pussy clench around his rampaging shaft. "Do whatever you want to me, Daddy. I said to rut me like a whore, and you're being far too polite!"

"Your wish is my command, Princess." There was a trace of amusement in his voice, but she was unable to summon the words to berate him for his mockery as his other hand delivered a stinging, open-palmed slap to her jiggling ass. At the same time, his other hand switched from pushing her down to pulling, yanking her head back by her golden curls.

Alita yelped eagerly at the rough treatment, her tongue lolling in her mouth as spank after spank was delivered to her royal rear and her upper body was lifted from the desk. She would have been a real sight if anyone walked in now, her legs spread and her tits bouncing out of her dress as her secret lover fucked away her responsibilities. The door was well locked, but the thought of being seen like this made her core burn, and with a strangled moan, she came explosively on his cock, wailing 'Daddy!' the whole time.

With a groan, her guard wrenched himself out of her and surrendered to his own orgasm in turn, blasting thick ropes of her favourite hot cum all over her bare ass. As she crumpled to the ground, sticky and exhausted, she found enough energy to pout up at her partner. “I told you do it inside next time! Are you ignoring an order from your Princess?”

“It’s not worth my neck,” he chuckled, flopping down on the floor next to her and ruffling her disheveled golden hair. “Imagine what would happen if your ‘virgin’ belly started swelling up with a royal guard’s bastard?”

“Hehe! But that’s half the fun of it!” she chuckled, a very un-ladylike grin spreading across her face. “Wouldn’t it be fun to knock me up?”

“It would,” he admitted, “but not when you’ve been promised to the crown prince of Nembria.”

Her face fell. “You heard about that, did you?”

“Aye.” Sympathetically, he drew the half-naked young woman close and rested her head on his broad chest, his strong fingers stroking her cheek. “Didn’t stop you coming to seek me out, though, did it?”

“Quite the opposite,” she grumbled, turning to burrow closer into his chest. Her voice was soft and a touch fragile, not the strident, commanding tone he and everybody else was used to. “I need you now more than ever, my knight. Have you another round in you? I feel I haven’t been properly ruined yet.”

He knew he should refuse, but the young woman’s soft, slender body was pressing against him in tantalising ways as she snuggled into his lap, her dress still half discarded. “How much time do we have?” he asked, resigning himself. His cock twitched, which made her giggle as she felt it against her leg.

“I told my father I wished not to be disturbed while I process the news of my betrothal,” she murmured, stretching her face upwards to plant needy kisses along the edge of her loyal knight’s jaw. “We have at least until the maids come to dress me for supper.”

This could be kinda romantic, the way it turned out as I was writing it. Either way, I don’t picture it getting too dark. Rough, secret sex is the name of the game. Perhaps the princess elopes with her knight rather than marry the prince she doesn’t love; perhaps she goes through with it out of a sense of duty, but continues screwing her bodyguard on the side - potentially up to and including having him sire a bastard child that the prince thinks is his own. That’s about as dark as it goes.

I really like princesses and the like in these RP scenes, because there’s such a fantastic contrast between appearance and reality. I’m a big fan of clothing play; rather than have you naked all the time, I’d much prefer to hike up the skirts of one of those expensive gilded dresses. Cum play, breeding and such are all nice things to include too.