The disgusting slimy tongue slithered across his own tongue and down his throat, deeper and deeper with wet squelching sounds. It was incredibly flexible and strong, able to expand and contract at will to fit anywhere and fill any space. It expanded inside the princeling's mouth to to point of forcing him to gape wider than he though the could. Then it slid down his throat slightly thicker than a grown man's cock. It's bulbous veins and endless warty bumps rippling down his gullet and making it worse. The frog's slime oozed from saliva-glans along it, tasting slightly salty and very tangy. Like vinegar, seaweed and mud. With a hint or sweet. Not a candy sweet, but the subtle rank sweet that comes with some kinds of fermentation. It was a completely unique taste that was absolutely revolting to Johnathan. And still the tongue pressed deeper and deeper inside of him.
The prince could not run away. The toad was too strong. And he could not cry for help. He couldn't even breath. He felt like he was being strangled, but even though it continued to happen, he wasn't suffocating. Even without breath, his limbs didn't ache with the need for air.
“Frogs and toads breath through their skin,” the Toad King slurred, still forcefully kissing Johnathan. “I have passed on to you this ability so that we may have a proper kiss. I can also feed you oxygen through my tongue directly into your organs if needed.” It was difficult to understand the monster, but he did understand terrified Johnathan.
The tongue kept sliding down Johnathan's throat. It had long since filled his stomach and moved beyond that. The toad held on to his shoulders, but the prince's hands were free. He placed them on his stomach and felt the tongue worming its way around in his intestines. How long was that tongue!?
The drool salivating from the toad's huge mouth dripped down its tongue and oozed both into the prince and spilled out over his face. It dribbled onto his fine clothes and started to dissolve them, leaving only smooth, pink skin. Already the upper arms and shoulders where the toad had grabbed him was bare skin.
The toad moved one arm down to Johnathan's butt and melted a hole back there so its finger could slide in. The toad's finger was as thick as Johnathan's dick, but more bulbous at the tip. But with the lubrication of the slime, it was shoved in with ease. Ease for the toad that is, not Johnathan. It stretched sphincter against Johnathan's will. And still the tongue continued to invade him. He was feeling very weird. Absolutely disgusted and terrified, but also something he didn't understand. He was being turned on. Was this slime an aphrodisiac? That had to be it. It was impossible that any part of him liked any of this.
The toad pressed in yet another finger, effectively double penetrating the prince. The fingers began to play with his prostate, making Johnathan thrash and shiver. It was too much to bare! The fingers worked together to almost curl around the prostate gland and pinch it. Had Johnathan been able to, he would have screamed with overwhelmed sensations. He kicked helplessly against the Toad's ample belly, but it did nothing. The Toad just kept pinching and twisting around the prostate.
Finally, the fingers pulled back out. Johnathan would have breathed out in relief if he still had breath. However, he could feel his prostate being pinched again, even though there was nothing up his butt. It took him a horrible moment to realize what it was. The tongue had reached all the way through him to the other side. It's warty surface slid mercilessly across his prostate and forced its way out of his ass thicker than a grown man's erect cock. It writhed and slithered, ever moving through all of Johnathan. Never stopping, even for a moment.
The toad let go of him and simply let him get lifted into the air by the powerful tongue. The front of the princeling's pants were melted away and his little cock was grabbed. His pubic hair dissolved away in the slime, leaving him as smooth as a baby. That long tongue wasn't finished yet. It slithered out further. The tip of it stretched out to be far thiner. Then it met with the tip of Johnathan's penis. “Oh no...” Johnathan though. The warty tongue slithered its way right into his urethra. All Johnathan could do was shiver and endure.
His prostate was being stimulated from the other side as well now. The two parts of the tongue working in concert to make Johnathan squirm like crazy. His eyes rolled back in his head. He was so horny, but with the tongue invading his cock, he could not orgasm. And it didn't end there. The tongue slithered into Johnathan's bladder and expanded inside, filling every available space and continuously moving and slithering as more and more of the slimy tongue found its way in. It stretched the bladder to the max. And with his ass already being completely full, it made Johnathan absolutely desperate to pee and cum. Yet he could do neither. Worse yet, the tongue forced his cock to curve down between his legs like a girl. He wasn't even allowed an erection.