“Can you feel my heavy balls resting on you?" he enquired. The girl could only nod that she could. "They're packed full of cum... and where does that cum belong?" he asked.

“In... my tummy!" she gasped, her senses overloaded. "Yes, that's right," he crooned in her ear.

“Such a good girl."

John began to slowly pull back, leaving her bowels feeling vacant and empty as he withdrew. Alyssa hissed at the bizarre feeling of being voided in this way. He pulled his hips back until just the head was still inside her, her tight anus refusing to give up its clenching grip under the helm of his cock. Reversing direction, John pushed back into her, his passage much easier this time.

“Ufff!" Alyssa gasped out loud as she was suddenly shoved full of meat again. She had never felt this stuffed before, her internal organs having to rearrange themselves to find room to fit this enormous intruder.

John began to establish a steady rhythm, sliding his broad cock deep into her ass time and time again. The girl could only grunt and groan as he stroked into her snug fitting anus.

“Unhh, unh, unh, unnh!" she moaned, as he thrust away at her.

John rested on her back, kneeling to either side of her legs, her smaller body completely covered by his own. He gripped the end of the bed in a firm grasp as he rocked back and forth, fucking her smoothly in the ass. The teenager had arched her back, her skin glistening with perspiration. Her head was thrown back, resting against his shoulder and her eyes were squeezed tightly closed. The beautiful teen's mouth hung open as she gasped with pleasure, her Lips swollen with passion Alyssa's hands came forward to cover his own, and they interlaced their fingers, gripping each other tightly.

“That's it baby, you're so fucking hot!" John hissed in her ear, as he pounded her firm taut cheeks under his hips.

"Do it harder!" she grunted in reply. "Show me who's boss!"

John kissed the panting teenager fiercely, which she returned with passion. Her sweat slicked hair flew around her face as he rutted into the clenching grip of her ass, fucking her furiously. He couldn't remember ever feeling this turned on before, his body surrendering to pure animalistic lust as he buggered the beautiful teenager splayed out beneath him. Eventually the vice like tightness of her anal passage milked him to the point of release, and he thrust hard into her as his balls exploded in climax. John was seeing spots before his eyes as cum rocketed out of his cock and blasted into the teen's bowels.

“Ohh! I can feel it inside me.... It's so hot!" Alyssa gasped as he gave her a cum enema.

She joined him in climax, her excited young body bucking and convulsing beneath him as he rode out his long explosive orgasm. With his weight pinning her in place, she was forced to accept each Long surge of spunk, her stomach rounding out beneath her as he filled up her tummy.

"Ohh fuck!" she groaned helplessly, as her waistline expanded to house his thick, heavy cum.

“That's it baby, got to fill your belly,” John grunted, as his balls lurched again and again.

They stayed locked in place, his cock balls deep up her ass, as his hips drove her into the bed, trying to force his spunk as far inside her as it would go. Alyssa could only hold on tight as the firm, supple skin of her tummy stretched to home all his cum. His jism felt warm and heavy as it filled her up, comforting her as he used her ripe young body.

Eventually John's orgasm abated and he rolled over to the girl's side so that he wouldn't squash her with his weight. His deflating cock slithered from her ass, which sealed up tight behind him. They cuddled together as they both panted for breath, and he gently stroked her cum packed abdomen.

“Oh John, that was amazing! I felt so submissive, so helpless, like I had surrendered all control," the satiated young woman sighed contentedly. "It felt so... intense."

John could only nod mutely in agreement, not able to speak quite yet. Their breathing eventually returned to normal as they relaxed in the afterglow of a truly tremendous climax. Suddenly Alyssa lurched upright, a funny Look on her face, before she dashed to the bathroom. She returned a few minutes later blushing cutely, her tummy now returned to its normal size. John didn't comment and just opened his arms, inviting her back to his embrace. They relaxed together, enjoying the comfortable silence.

"“Grrrumble!" John's stomach protested Loudly, breaking the moment. Alyssa laughed, the melodic sound filling his cabin. "You poor man, Let me go fix you some breakfast!" she volunteered obligingly.

He watched entranced at the alluring sway of her hips as she padded out of the cabin and headed towards the rec room. John marvelled at his good fortune.

“What could I have possibly done in a previous life to have got this lucky?" he thought to himself as he closed his eyes with a big grin on his face, and waited for Alyssa to return.